python004 -- 字符串处理及编码格式

╰+哭是因爲堅強的太久メ 2022-06-15 11:08 234阅读 0赞

**2.1 字符串**

**2.1.1 字符串转换**

说明：先定义个整数和浮点数，再查看类型，用str()函数将对象转成字符串。

这里的用到了type()函数，用于查看对象类型。这个type()在以后学习中很用的，刚开始学习时候，往往因为对象类型不对，导致程序运行报错，这时可以用它来排查问题。

**2.1.2 字符串连接**

**2.1.3 格式化输出**

<table style=""> 
 <tbody style="padding:0px; margin:0px"> 
  <tr style="padding:0px; margin:0px; font-size:12px"> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">操作符号</span></p> </td> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">说明</span></p> </td> 
  </tr> 
  <tr style="padding:0px; margin:0px; font-size:12px"> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">%s</span></p> </td> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">字符串（str()）</span></p> </td> 
  </tr> 
  <tr style="padding:0px; margin:0px; font-size:12px"> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">%r</span></p> </td> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">字符串（repr()）</span></p> </td> 
  </tr> 
  <tr style="padding:0px; margin:0px; font-size:12px"> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">%d</span></p> </td> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">整数</span></p> </td> 
  </tr> 
  <tr style="padding:0px; margin:0px; font-size:12px"> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">%f</span></p> </td> 
   <td style="padding:10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">浮点数，可指定小数点后的精度</span></p> </td> 
  </tr> 
 </tbody> 
</table>

1) 字符串格式输出三种方法

说明：%s采用str()函数显示，%r采用repr()函数显示。repr()和反撇号把字符串转为Python表达式。

2) 保留小数点数

**2.1.4 字符串处理**

![wKioL1fUsVnRU35PAAChUcGSy1Y556.png-wh\_50][wKioL1fUsVnRU35PAAChUcGSy1Y556.png-wh_50]

上图是字符串处理的方法，红色框框中大概有一半经常用的，我们就拿一部分常用的来举例说明。

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    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
      27 
    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
      34 
    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
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    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
      37 
    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
      38 
    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
      39 
    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
      40 
    </div> 
    <div style="padding:0px 0.5em 0px 1em!important; margin:0px!important; background:none white!important; border-width:0px 3px 0px 0px!important; border-top-style:initial!important; border-right-style:solid!important; border-bottom-style:initial!important; border-left-style:initial!important; border-top-color:initial!important; border-right-color:rgb(108,226,108)!important; border-bottom-color:initial!important; border-left-color:initial!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:right!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; word-wrap:normal; white-space:pre!important">
      41 
    </div> </td> 
   <td style="padding:0px!important; margin:0px!important; font-size:1em!important; height:26px; line-height:1.1em!important; float:none!important; border:0px!important; width:683.2px; background:none!important; bottom:auto!important; left:auto!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; min-height:auto!important"> 
    <div style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:relative!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important"> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,130,0)!important">#!/usr/bin/env&nbsp;python&nbsp;&nbsp;&nbsp;&nbsp;</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,130,0)!important">#&nbsp;-*-&nbsp;coding:&nbsp;utf-8&nbsp;-*-</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">=</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"Hello&nbsp;world!"</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"字符串长度:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">len</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">(xxoo)</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"首字母大写:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.capitalize()</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"字符l出现次数:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.count(</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'l'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">)</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"感叹号是否结尾:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.endswith(</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'!'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">)</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"w字符是否是开头:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.startswith(</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'w'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">)</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"w字符索引位置:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.find(</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'w'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">)&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,130,0)!important">#&nbsp;xxoo.index('W')</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"格式化字符串:&nbsp;Hello{0}&nbsp;world!"</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">.</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">format</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">(</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">','</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">)</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"是否都是小写:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.islower()</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"是否都是大写:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.isupper()</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"所有字母转为小写:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.lower()</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"所有字母转为大写:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.upper()</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"感叹号替换为句号:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.replace(</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'!'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">,</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'.'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">)</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"以空格分隔切分成列表:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.split(</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'&nbsp;'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">)</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"转换为一个列表:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.splitlines()</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"去除两边空格:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.strip()</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(255,20,147)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"大小写互换:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo.swapcase()</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"只要Hello字符串:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo[</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,153,0)!important">0</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">:</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,153,0)!important">5</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">]</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">print</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">"去掉倒数第一个字符:&nbsp;%s"</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">%</code>&nbsp; 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">xxoo[</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,153,0)!important">0</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">:</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:bold!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,102,153)!important">-</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,153,0)!important">1</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">]</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important">&nbsp;&nbsp;&nbsp;&nbsp;</code>&nbsp; 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,130,0)!important">#&nbsp;python&nbsp;test.py</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">字符串长度:&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,153,0)!important">12</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">首字母大写:&nbsp;Hello&nbsp;world!</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">字符l出现次数:&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,153,0)!important">3</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">感叹号是否结尾:&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:gray!important">True</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">w字符是否是开头:&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:gray!important">False</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">w字符索引位置:&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:rgb(0,153,0)!important">6</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">格式化字符串:&nbsp;Hello,&nbsp;world!</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">是否都是小写:&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:gray!important">False</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">是否都是大写:&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:gray!important">False</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">所有字母转为小写:&nbsp;hello&nbsp;world!</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">所有字母转为大写:&nbsp;HELLO&nbsp;WORLD!</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">感叹号替换为句号:&nbsp;Hello&nbsp;world.</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">以空格分隔切分成列表:&nbsp;[</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'Hello'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">,&nbsp;</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'world!'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">]</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">转换为一个列表:&nbsp;[</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:blue!important">'Hello&nbsp;world!'</code> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">]</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">去除两边空格:&nbsp;Hello&nbsp;world!</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">大小写互换:&nbsp;hELLO&nbsp;WORLD!</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">只要Hello字符串:&nbsp;Hello</code> 
     </div> 
     <div style="padding:0px 1em!important; margin:0px!important; background:none white!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; white-space:nowrap"> 
      <code style="padding:0px!important; margin:0px!important; background:none!important; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; text-align:left!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,&quot;Bitstream Vera Sans Mono&quot;,&quot;Courier New&quot;,Courier,monospace!important; font-weight:normal!important; font-style:normal!important; font-size:1em!important; min-height:auto!important; color:black!important">去掉倒数第一个字符:&nbsp;Hello&nbsp;world</code> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

**2.1.5 字符串输出颜色**

<table style=""> 
 <tbody style="padding:0px; margin:0px"> 
  <tr style="padding:0px; margin:0px; font-size:12px"> 
   <td style="padding:5px 10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="color:#000000; padding:0px; margin:0px"><strong style="padding:0px; margin:0px"><span style="font-family:宋体; color:#000000; padding:0px; margin:0px">字体颜色</span></strong></span></p> </td> 
   <td style="padding:5px 10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><strong style="padding:0px; margin:0px"><span style="font-family:宋体; padding:0px; margin:0px">字体背景颜色</span></strong></p> </td> 
   <td align="left" style="padding:5px 10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><strong style="padding:0px; margin:0px"><span style="font-family:宋体; padding:0px; margin:0px">显示方式</span></strong></p> </td> 
  </tr> 
  <tr style="padding:0px; margin:0px; font-size:12px"> 
   <td align="left" style="padding:5px 10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">30：黑</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">31：红</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">32：绿</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">33：黄</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">34：蓝色</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">35：紫色</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">36：深绿</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">37：白色</span></p> </td> 
   <td style="padding:5px 10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">40：黑</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">41：深红</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">42：绿</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">43：黄色</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">44：蓝色</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">45：紫色</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">46：深绿</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">47：白色</span></p> </td> 
   <td align="left" style="padding:5px 10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">0：终端默认设置</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">1：高亮显示</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">4：下划线</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">5：闪烁</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">7：反白显示</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">8：隐藏</span></p> </td> 
  </tr> 
  <tr style="padding:0px; margin:0px; font-size:12px"> 
   <td colspan="3" align="left" style="padding:5px 10px; margin:0px; font-size:12px; background:white; border:1px solid rgb(221,221,221)"> <strong style="padding:0px; margin:0px"><span style="font-family:宋体; padding:0px; margin:0px">格式：</span></strong> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">\033[1;31;40m &nbsp;# 1是显示方式，可选。31是字体颜色。40m是字体背景颜色。</span></p> <p style="padding:0px; margin:0px; clear:both; height:auto; overflow:hidden"><span style="font-family:宋体; padding:0px; margin:0px">\033[0m &nbsp; &nbsp; # 恢复终端默认颜色，即取消颜色设置。</span></p> </td> 
  </tr> 
 </tbody> 
</table>

**[![wKioL1fenUOAvFGqAAC3Uy3FuZk327.png][]][wKioL1fenUOAvFGqAAC3Uy3FuZk327.png]**

**[![wKiom1fenVng\_T7yAACUWawoUEc068.png][wKiom1fenVng_T7yAACUWawoUEc068.png]][wKiom1fenVng_T7yAACUWawoUEc068.png]**

博客地址：http://lizhenliang.blog.51cto.com

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**2.2 编码**

**2.2.1 常见字符编码类型**

ASCII：美国信息交换标准码，是目前计算机中最广泛使用的字符集编码。每个ASCII码以1个字节存储，例如数字字符0的ASCII码是0110000，十进制表示为48。

Unicode：为解决世界上上百种语言带来混合、冲突，各国有各国的标准，显示很容易出现乱码。Unicode就出现了，它把所有语言的字符都统一到一套Unicode编码中，并定义每个语言字符的标准，所以Unicode又称统一码，万国码。大部分编程语言都支持Unicode，Python内部编码也支持Unicode。

GB2312：中国国家标准总局发布处理汉字的标准编码。

GBK：GB2312的扩展，向下兼容GB2312。

UTF-8：针对Unicode的可变长度字符编码，又称万国码。支持中文简体繁体及其它语言（如英文，日文，韩文）。

**2.2.3 decode()**

decode()函数作用是将其他编码（比如ACSII、Byte String）的字符串解码成Unicode。

**2.2.4 encode()**

encode()函数作用是将Unicode编码成终端软件能是识别的编码，就能正常显示了，比如UTF-8、GBK。

**2.2.5 Python编码处理**

说明：在程序里面直接打印中文，会报语法错误，这是因为Python默认编码是ASCII，无法处理其他编码。

如果想打印中文，需要声明编码为utf-8，上面也有写过：

可以正常输出中文了，类型是字符串，这个字符串是经过Python unicode编码后字节组成的。

虽然可以正常输入中文，并不意味的就万事大吉了，如果终端编码不是utf-8或其他软件也不确定编码还会出现乱码情况。所以还是要明白Python处理编码逻辑关系，才能更好的应对编码问题。

切换到交互式解释器：

如果直接转成utf-8是不允许的，报错Unicode解码错误，大概意思是说ascii码不能解码字节字符串。

上面讲到encode()函数作用是将Unicode码解码，而现在的c变量并非是Unicode码，而是字节字符串，算是Unicode的一种吧？。

故此，不能使用encode()，而是先使用decode()先解码陈Unicode再用encode()编码成utf-8。

如果是Unicode字符串可直接通过encode()函数转码其他编码。

看下字节字符串和unicode字符串区别：

字节字符串长度要比unicode长的多，而unicode长度就是字符长度。

总结下：Python处理编码流程大致是这样的，ascii --> decode() --> unicode --> encode() --> 终端能识别的编码，unicode算是一个中间码，有着承上启下的作用。

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[wKioL1fenUOAvFGqAAC3Uy3FuZk327.png]: /images/20220615/5b91f7885840431591f3f9f26d8b501a.png
[wKiom1fenVng_T7yAACUWawoUEc068.png]: /images/20220615/23c9990b7ef74772bee203b9fb4e11f4.png