STRING对象的增强函数

执着

1. <script>
   
2. //code by windy_sk , seasonx@163.net
   
3. //测字符串实际长度
   
4. String.prototype.Tlength = function(){var arr=this.match(/[^\x00-\xff]/ig);return this.length+(arr==null?0:arr.length);}
   
5. 
   
6. //字符串左取
   
7. String.prototype.left = function(num,mode){if(!/\d+/.test(num))return(this);var str = this.substr(0,num);if(!mode) return str;var n = str.Tlength() - str.length;num = num - parseInt(n/2);return this.substr(0,num);}
   
8. 
   
9. //字符串右取
   
10. String.prototype.right = function(num,mode){if(!/\d+/.test(num))return(this);var str = this.substr(this.length-num);if(!mode) return str;var n = str.Tlength() - str.length;num = num - parseInt(n/2);return this.substr(this.length-num);}
    
11. 
    
12. //字符串包含
    
13. String.prototype.GetCount = function(str,mode){return eval("this.match(/("+str+")/g"+(mode?"i":"")+").length");}
    
14. 
    
15. //字符串去除两端空字符
    
16. String.prototype.Trim=function(){return this.replace(/(^\s*)|(\s*$)/g,"");}
    
17. String.prototype.Ltrim = function(){return this.replace(/(^\s*)/g, "");}
    
18. String.prototype.Rtrim = function(){return this.replace(/(\s*$)/g, "");}
    

复制代码

特思

{:3_244:}{:3_244:}路过，保证最后一次。。

深藏功舆名ゐ

这是什么啊