jquery 限制文本框只能输入数字

亦凉 2022-06-13 09:25 396阅读 0赞

http://blog.csdn.net/suntanyong88/article/details/38682703

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1.  jquery 限制文本框只能输入数字     
2.      
3.  转自:http://jonsion.iteye.com/blog/558277    
4.      
5.  $("input\[name='fangwenyudinhuishu'\]").keyup(function()\{       
6.          var tmptxt=$(this).val();       
7.          $(this).val(tmptxt.replace(/\\D|^0/g,''));       
8.      \}).bind("paste",function()\{       
9.          var tmptxt=$(this).val();       
10.         $(this).val(tmptxt.replace(/\\D|^0/g,''));       
11.     \}).css("ime-mode", "disabled");      
12.     
13.     
14.     
15. 上面是keyup事件处理,下面处理了CTR+V事件,最后就是CSS设置输入法不可用

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1.  用jquery限制文本框只能输入数字：    
2.      
3.  程序：    
4.      
5.  $(function()\{    
6.      
7.   //文本框只能输入数字，并屏蔽输入法和粘贴    
8.   $.fn.numeral = function() \{       
9.              $(this).css("ime-mode", "disabled");       
10.             this.bind("keypress",function(e) \{       
11.             var code = (e.keyCode ? e.keyCode : e.which);  //兼容火狐 IE        
12.                 if(!$.browser.msie&&(e.keyCode==0x8))  //火狐下不能使用退格键       
13.                 \{       
14.                      return ;       
15.                     \}       
16.                     return code **>**= 48 && code**<**= 57;       
17.             \});       
18.             this.bind("blur", function() \{       
19.                 if (this.value.lastIndexOf(".") == (this.value.length - 1)) \{       
20.                     this.value = this.value.substr(0, this.value.length - 1);       
21.                 \} else if (isNaN(this.value)) \{       
22.                     this.value = "";       
23.                 \}       
24.             \});       
25.             this.bind("paste", function() \{       
26.                 var s = clipboardData.getData('text');       
27.                 if (!/\\D/.test(s));       
28.                 value = s.replace(/^0\*/, '');       
29.                 return false;       
30.             \});       
31.             this.bind("dragenter", function() \{       
32.                 return false;       
33.             \});       
34.             this.bind("keyup", function() \{       
35.             if (/(^0+)/.test(this.value)) \{       
36.                 this.value = this.value.replace(/^0\*/, '');       
37.                 \}       
38.             \});       
39.         \};      
40.         //调用文本框的id    
41.   $("\#score").numeral();     
42.     
43. \});

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