//Url解析

		function parseURL(url) {

		    var a = document.createElement('a');

		    a.href = url;

		    return {

		        source: url,

		        protocol: a.protocol.replace(':', ''),

		        host: a.hostname,

		        port: a.port,

		        query: a.search,

		        params: (function () {

		            var ret = {}, seg = a.search.replace(/^\?/, '').split('&'), len = seg.length, i = 0, s;

		            for (; i < len; i++) {

		                if (!seg[i]) {

		                    continue;

		                }

		                s = seg[i].split('=');

		                ret[s[0]] = s[1];

		            }

		            return ret;

		        })(),

		        file: (a.pathname.match(/\/([^\/?#]+)$/i) || [, ''])[1],

		        hash: a.hash.replace('#', ''),

		        path: a.pathname.replace(/^([^\/])/, '/$1'),

		        relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [, ''])[1],

		        segments: a.pathname.replace(/^\//, '').split('/')

		    };

		};

var url ="http://www.baidu.com?name=aaa";

console.log(parseURL(url).protocol)//http

console.log(parseURL(url).params.name)//aaa