js获取链接参数

var url = "http://test.cn/index.php?class=9&id=2&key=88";function parseQueryString(url){ ???var params = {}; ???var arr = url.split("?"); ???if(arr.length <=1) ???????return params; ???arr = arr[1].split("&"); ???for(var i=0,l=arr.length; i<l; i++){ ???????var a = arr[i].split("="); ???????params[a[0]] = a[1]; ???} ???return params;}var ps = parseQueryString(url);console.log(ps);