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⇤ ← Revision 1 as of 2006-07-21 10:06:16
Size: 549
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Size: 549
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 3: | Line 3: |
| {{{#!Javascript | {{{!#Javascript |
JavaScript
- 双字节字符串处理
- {{{!#Javascript
String.prototype.leftB=function(len){
- var s=this.replace(/\*/g," ").replace(/[^\x00-\xff]/g,"**") return this.slice(0,s.slice(0,len).replace(/\*\*/g," ").replace(/\*/g,"").length)
} String.prototype.lenB=function(){
- return this.replace(/\*/g," ").replace(/[^\x00-\xff]/g,"**").length
} str="hi,我是中国人" alert("原始字符串："+str+"\n字符串长度："+str.length+"\n双字节长度："+str.lenB()+"\n前10位字节："+str.leftB(10))
- }}}