/// <summary>

        /// ASCII转字符串

        /// </summary>

        /// <param name="asciiCode">ASCII对应十进制码</param>

        /// <returns></returns>

        public static string ASCIIToStr(int asciiCode)

        {

            if (asciiCode >= 0 && asciiCode <= 255)

            {

                System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();

                byte[] byteArray = new byte[] { (byte)asciiCode };

                string strCharacter = asciiEncoding.GetString(byteArray);

                return (strCharacter);

            }

            else

            {

                throw new Exception("ASCII Code is not valid.");

            }

        }