编写一个参数JavaScript函数parseQueryString，它的用途是把url参数解析为一个对象

var url = "http://www.taobao.com/index.php?key0=0&key1=1&key2=2.............";
var obj = parseQueryString(url);

function parseQueryString(argu){
  var str = argu.split(‘?‘)[1];
  var result = {};
  var temp = str.split(‘&‘);
  for(var i=0; i<temp.length; i++)
  {
     var temp2 = temp[i].split(‘=‘);
     result[temp2[0]] = temp2[1];
  }
  return result;
}