js截取字符串处理和 js 图片切换处理

╰+攻爆jí腚メ 2022-07-12 07:07 191阅读 0赞

js截取方式

1、区别汉字和英文

//字符串截取 function CutString(name, maxLength) \{ if (!maxLength) \{ maxLength = 20; \} if (name == null || name.length < 1) \{ return ""; \} var w = 0; //字符串长度，一个汉字长度为2 var s = 0; //汉字个数 var p = false; //判断字符串当前循环的前一个字符是否为汉字 var b = false; //判断字符串当前循环的字符是否为汉字 var nameSub; for (var i = 0; i < name.length; i++) \{ if (i > 1 && b == false) \{ p = false; \} if (i > 1 && b == true) \{ p = true; \} var c = name.charCodeAt(i); //单字节加1 if ((c >= 0x0001 && c <= 0x007e) || (0xff60 <= c && c <= 0xff9f)) \{ w++; b = false; \} else \{ w += 2; s++; b = true; \} if (w > maxLength && i <= name.length - 1) \{ if (b == true && p == true) \{ nameSub = name.substring(0, i - 2) + "..."; \} if (b == false && p == false) \{ nameSub = name.substring(0, i - 3) + "..."; \} if (b == true && p == false) \{ nameSub = name.substring(0, i - 2) + "..."; \} if (p == true) \{ nameSub = name.substring(0, i - 2) + "..."; \} break; \} \} if (w <= maxLength) \{ return name; \} return nameSub; \}

2、不区分汉字和英文，只按字符个数截取

本文来自CSDN博客，转载请标明出处：[http://blog.csdn.net/carefree31441/archive/2009/09/10/4538166.aspx][http_blog.csdn.net_carefree31441_archive_2009_09_10_4538166.aspx]

图片切换

<SCRIPT language="JavaScript"> </mce:style><style mce\_bogus="1">'); document.write('.axx\{padding:1px 7px;border-left:\#cccccc 1px solid;font-size:12px;\}'); document.write('a.axx:link,a.axx:visited\{text-decoration:none;color:\#fff;'); document.write('line-height:12px;font:9px sans-serif;background-color:\#666;\}'); document.write('a.axx:active,a.axx:hover\{text-decoration:none;color:\#fff;'); document.write('line-height:12px;font:9px sans-serif;background-color:\#999;\}'); document.write('.bxx\{padding:1px 7px;border-left:\#cccccc 1px solid;\}'); document.write('a.bxx:link,a.bxx:visited\{text-decoration:none;color:\#fff;'); document.write('line-height:12px;font:9px sans-serif;background-color:\#009900;\}'); document.write('a.bxx:active,a.bxx:hover\{text-decoration:none;color:\#fff;'); document.write('line-height:12px;font:9px sans-serif;background-color:\#ff9900;\}'); document.write('</style>'); //内容部分 document.write('<div style="width:'+widthss+'px;height:'+heights+'px;'); document.write('overflow:hidden;text-overflow:clip;float:left;">'); document.write('<div><a id="url" target="\_blank"><img id="pic" '); document.write('style="border:1px \#cccccc solid;'); document.write('FILTER: progid:DXImageTransform.Microsoft.RevealTrans (duration=2,transition=23)"'); document.write(' width='+widths+' height='+heights+' /></a></div>'); document.write('<div style="filter:alpha(style=1,opacity=10,finishOpacity=90);'); document.write('background: \#888888;width:100%-2px;text-align:right;'); document.write('top:-16px;position:relative;margin:1px;height:14px;'); document.write('border:0px;padding-top:1px;z-index:4000;"><div>'); for(var i=1;i<counts+1;i++) \{ document.write('<a href="javascript:changeimg('+i+');" mce\_href="javascript:changeimg('+i+');" id="xxjdjj'+i+'"'); document.write(' class="axx" target="\_self">'+i+'</a>'); \} document.write('</div></div></div>'); //开始执行滚动操作 change\_img(); //--> </SCRIPT>

js获取字节数

[http_blog.csdn.net_carefree31441_archive_2009_09_10_4538166.aspx]: http://blog.csdn.net/carefree31441/archive/2009/09/10/4538166.aspx