public JsonResult <Logistics> GetLogisticsInfo(string type, string postid) //JsonResult<dynamic> { string Url = string.Format(@"http://www.kuaidi100.com/query?type={0}&postid={1}", type, postid); string Result = WebServiceHelper.Get(Url); Logistics logistics = JsonConvert.DeserializeObject <Logistics>(Result); return(Json <Logistics>(logistics)); }