// ================================================================
//去除两头空格
// ================================================================
function Trim(str)
{
return str.replace(/^\s+/,'').replace(/\s+$/,'');
}
//去除两头空格
// ================================================================
function Trim(str)
{
return str.replace(/^\s+/,'').replace(/\s+$/,'');
}
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<script language=Javascript> //自己动手为string添加Trim
String.prototype.Trim = function(){return this.replace(/^\s+|\s+$/g,"");}
String.prototype.Ltrim = function(){return this.replace(/^\s+/g, "");}
String.prototype.Rtrim = function(){return this.replace(/\s+$/g, "");}
var str = " meizz ";
alert(str.Trim());
alert(str.Ltrim());
alert(str.Rtrim());
</script>
{
while(s.search(" ")>=0)
{
s=s.replace(" ","")
}
return s
}var myvalue=xxx.value
myvalue=trim(myvalue)
</script>
<script language=Javascript> //自己动手为string添加Trim
String.prototype.Trim = function(){return this.replace(/^\s+|\s+$/g,"");}
String.prototype.Ltrim = function(){return this.replace(/^\s+/g, "");}
String.prototype.Rtrim = function(){return this.replace(/\s+$/g, "");}
var str = " meizz ";
alert(str.Trim());
alert(str.Ltrim());
alert(str.Rtrim());
</script>