使外部参数支持传递多个变量

var url = path + "?id=" +1 + "&outsideParams=param1=" + Entity.param1 + "$param2=" +Entity.param2;

   public ActionResult ActionName(int id, string outsideParams)
   {
     //使外部参数支持传递多个变量
      if (!string.IsNullOrWhiteSpace(outsideParams))
      {
        outsideParams = outsideParams.Replace("$", "&");
      }
   }