private static void DataReceviedHandler(

                        object sender,

                        SerialDataReceivedEventArgs e)

        {

            SerialPort sp = (SerialPort)sender;

            string indata = sp.ReadExisting();

            insertStr += indata;

            

            foreach (char ch in insertStr)

            {

                if (ch != 'E' && ch != 'S'&& ch != 'o')

                {

                    usingStr += ch;

                }

            }



            

            string RealName = "";

            switch (usingStr)

            {

                case "2011072069\0":

                    RealName = "a";

                    break;

                case "2010073065\0":

                    RealName = "b";

                    break;

                case "2011072069":

                    RealName = "a";

                    break;

                case "2010073065":

                    RealName = "b";

                    break;

 default:

                 &nb