获取传过来的参数

      var url = location.search; //获取url中"?"符后的字串 ('?modFlag=business&role=1')
      var theRequest = new Object();
      if ( url.indexOf( "?" ) != -1 ) {
        var str = url.substr(1); //substr()方法返回从参数值开始到结束的字符串；
        var strs = str.split("&");
        for (var i = 0; i < strs.length; i++) {
          theRequest[strs[i].split("=")[0]] = (strs[i].split("=")[1]);
        }
        // 想要什么直接 theRequest 点出来就可以了
        console.log( theRequest.ucid );
      }