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))
- }}}