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<script language=Javascript> //自己动手为string添加Trim function String.prototype.Trim() {return this.replace(/(^\s*)|(\s*$)/g,"");} function String.prototype.Ltrim(){return this.replace(/(^\s*)/g, "");} function String.prototype.Rtrim(){return this.replace(/(\s*$)/g, "");} var str = " meizz "; alert(str.Trim()); alert(str.Lt..
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