public static ExpressTrackInfoResult GetExpressTrackInfo(string expressCode, string expressNo)
        {
            ExpressTrackInfoResult ret = new ExpressTrackInfoResult
            {
                ExpressCode = expressCode,
                ExpressNo   = expressNo,
            };

            ret.Result = "false";
            try
            {
                ret.Result = OrderProvider.GetExternalExpressTrackInfo(expressCode, expressNo);
            }
            catch (Exception ex)
            {
                ret.ErrorMessage = ex.Message;
            }

            return(ret);
        }