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js求字符长度 

 1 </script>
 2 <!DOCTYPE html>
 3 <html lang="en">
 4 <head>
 5     <meta charset="UTF-8">
 6     <title>Document</title>
 7 </head>
 8 <body>
 9     <script language="javascript" type="text/javascript">
10 
11     new function(s)
12     {
13     if(!arguments.length||!s) return null;
14     if(""==s) return 0;
15     var l=0;
16     for(var i=0;i<s.length;i++)
17     {
18        if(s.charCodeAt(i)>255) l+=2;
19        else l++;
20     }
21     alert(l);
22     }("hello你好，我好,大家好！world!");
23     </script>
24     function(abcbcbcbcbbcbbc6666666666666666654444545454cccccccccccccccc);
25 
26 </body>
27 </html>

 

posted @ 2015-10-14 19:28  ZZZZW  阅读(260)  评论(0)  编辑  收藏  举报
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