CardHost.CardService.WriteGasCard C# (CSharp) Метод

        public WriteRet WriteGasCard(Stream param, string factory, string kmm, string kh, string dqdm,
            string ql, string csql, string ccsql, string cs, string ljgql, string bjql, string czsx, string tzed,
            string sqrq, string cssqrq, string oldprice, string newprice, string sxrq, string sxbj)
        {
            String args = "WriteGasCard";
            Log.Debug(args + " started.");
            StreamReader paramReader = new StreamReader(param);
            string paramStr = paramReader.ReadToEnd();
            args += " " + (String.IsNullOrWhiteSpace(paramStr) ? "0" : paramStr);
            args += " " + (String.IsNullOrWhiteSpace(factory) ? "0" : factory);
            args += " " + (String.IsNullOrWhiteSpace(kmm) ? "\"0\"" : "\"" + kmm + "\"");
            args += " " + (String.IsNullOrWhiteSpace(kh) ? "0" : kh);
            args += " " + (String.IsNullOrWhiteSpace(dqdm) ? "0" : dqdm);

            args += " " + ql;
            args += " " + csql;
            args += " " + ccsql;
            args += " " + cs;
            args += " " + ljgql;
            args += " " + bjql;
            args += " " + czsx;
            args += " " + tzed;

            args += " " + (String.IsNullOrWhiteSpace(sqrq) ? "0" : sqrq);
            args += " " + (String.IsNullOrWhiteSpace(cssqrq) ? "0" : cssqrq);
            args += " " + oldprice;
            args += " " + newprice;
            args += " " + (String.IsNullOrWhiteSpace(sxrq) ? "0" : sxrq);
            args += " " + (String.IsNullOrWhiteSpace(sxbj) ? "0" : sxbj);


            String result = null;
            WriteRet ret = new WriteRet();
            try
            {
                if (this.Spawn(args, out result))
                {
                    ret = JsonConvert.DeserializeObject<WriteRet>(result);
                    Log.Debug(args + "=" + result);
                }
                else
                {
                    ret.Err = "调用未返回。";
                    Log.Debug(args + "=" + ret.Err);
                }
            }
            catch (Exception e)
            {
                ret.Exception = e.Message;
                ret.Err = "调用错误。";
            }
            return ret;
        }