C#调取接口时报错：服务器提交了协议冲突. Section=ResponseStatusLine

   private Dictionary<string, Object> GetLocation(string imei)

         {

             #region===代码===

             string serviceAddress = string.Format("http://localhost/api/car/getlastinfo?imei={0}&key=xxxxx",imei);

             HttpWebRequest req = (HttpWebRequest)WebRequest.Create(serviceAddress);

             req.Method = "get";

             req.KeepAlive = false;

             var resp = new StreamReader(((HttpWebResponse)req.GetResponse()).GetResponseStream(), Encoding.GetEncoding("utf-8"));

             string res = resp.ReadToEnd();

             resp.Close();

             Dictionary<string, Object> dic = null;

             if (res != "")

             {

                 dic = JsonConvert.DeserializeObject<Dictionary<string, Object>>(res);

             }

             return dic;

             #endregion===代码===

         }

解决：设置  req.KeepAlive = false;