【www.gdgbn.com--php常用代码】

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, "");
}
string.prototype.ctrim = function()
{
return this.replace(/(s*)/g, "");
}

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