解析查询字符串参数

 // 解析查询字符串参数
    function getQueryStringArgs() {
        //取得查询字符串并去掉开头的问号
        var qs = (location.search.length > 0 ?location.search.substring(1): " "),
           //保存数据的对象
            args = {},
            items = qs.length ? qs.split("&") : [],
            item = null,
            name = null,
            value = null,
            i = 0,
            len = items.length;
        for (i = 0; i