js获取参数

// 获取url中的参数，并返回一个对象
 2 $.getRequestData = function() {
 3     var url = location.search; //获取url中"?"符后的字串
 4     var theRequest = {};
 5     if (url.indexOf("?") != -1) {
 6         var str = url.substr(1);
 7         strs = str.split("&");
 8         for (var i = 0; i < strs.length; i++) {
 9             theRequest[strs[i].split("=")[0]] = decodeURIComponent(strs[i].split("=")[1]);
10         }
11     }
12     return theRequest;
13 };
14 
15 // 生成一个带参数的url
16 $.createUrl = function(obj) {
17     var length = obj && obj.length,
18         idx = 0,
19         url = obj.url + ‘?‘;
20     for (var key in obj) {
21         if (key != ‘url‘ && obj[key] !== null) {
22             url += (key + ‘=‘ + encodeURIComponent(obj[key]) + ‘&‘);
23         }
24     }
25     return url.substring(0, url.lastIndexOf(‘&‘));
26 }