public ActionResult JM(string qRCode) {
            //string strq = qRCode.Substring(2, 16);
            //List<string> list = new List<string>();
            //for (int i = 0; i < strq.Length - 1; i = i + 2)
            //{
            //    string sub = strq.Substring(i, 2);
            //    list.Add(sub);
            //}
            //list.Reverse();
            //string connector = string.Join("", list);
            //string st00 = qRCode.Substring(18, 2);
            //connectorID = connector + st00 + "1";
            //return SuccessResult(connectorID);
        }