JS获取网址中指定值的正则函数

复制代码 代码如下:

<script type="text/javascript">

String.prototype.getQuery = function(name){

var reg = new RegExp('(^|\\?|&)'+name+'=([^&]*|$)'), url = this.replace(/&/g, '&'), r = url.match(reg);

return r === null ? null : unescape(r[2]);

}

var str = 'http://wpa.qq.com/msgrd?v=3&uin=1438344583&site=qq&menu=yes';

alert(str.getQuery('uin'));

</script>