String.prototype.GetValue= function(parm) {
var reg = new RegExp("(^|&)"+ parm +"=([^&]*)(&|$)");
var r = this.substr(this.indexOf("?")+1).match(reg);
if (r!=null) return unescape(r[2]); return null;
}
完整测试代码
test.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script>
String.prototype.getValue= function(parm) {
var reg = new RegExp("(^|&)"+ parm +"=([^&]*)(&|$)");
var r = this.substr(this.indexOf("?")+1).match(reg);
if (r!=null) return unescape(r[2]); return null;
}
function init(){
var url = window.location.href;
if(url.getValue('key1') == null){
alert('没有传递参数');
}else{
alert('传递参数：key1=' + url.getValue('key1'));
alert('传递参数：key2=' + url.getValue('key2'));
}
}
</script>
</head>
<body onload="init();">
<input type="button" onclick="window.location=window.location + '?key1=value1&key2=value2';return false;" value="传递参数"/>
</body>
</html>