C# 字符串转换ASCII

        /// <summary>
        /// 字符串转Ascii
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        private string StringToAscii(string s)
        {
            string ascii = "";

            foreach (char c in s)
            {
                int sss = (int)c;
                ascii += sss.ToString() + ",";
            }

            if (ascii.Length > 0)
            {
                ascii = ascii.Substring(0, ascii.Length - 1);
            }

            return ascii;

        }

        /// <summary>
        /// Ascii转字符串
        /// </summary>
        /// <param name="ascii"></param>
        /// <returns></returns>
        private string AsciiToString(string ascii)
        {
            string returnValue = "";
            string[] split = ascii.Split(',');
            foreach (string s in split)
            {
                returnValue += Encoding.ASCII.GetString(new byte[] { (byte)int.Parse(s) });
            }
            return returnValue;
        }