JS方法 -- 去除左右空格

String.prototype.LTrim  =  function()
{
return  this.replace(/(^/s*)/g,  ""); // wipe-left

}

String.prototype.RTrim  =  function()
{
return  this.replace(/(/s*$)/g,  ""); //wipe-right

}

String.prototype.Trim  =  function()
{
return  this.replace(/(^/s*)  |(/s*$)/g,  ""); //wipe-left-right

}

String.prototype.TrimAll  =  function()
{
return this.replace(//s+/g,""); //wipe-all

}