/// <summary>
        /// 加密方法
        /// </summary>
        /// <param name="encryptString">要加密的字符串</param>
        /// <returns>加密后的字符串</returns>
        public static string EncryptString(string encryptString)
        {
            TripleDESEncryptor target = new TripleDESEncryptor("nihao");

            return(target.Encrypt(encryptString));

            //string deCodeString = target.Decrypt(encodeString);
        }
        /// <summary>
        /// 解密方法
        /// </summary>
        /// <param name="deEncryptString">要解密的字符串</param>
        /// <returns>解密后的字符串</returns>
        public static string DeEncryptString(string deEncryptString)
        {
            TripleDESEncryptor target = new TripleDESEncryptor("nihao");

            return(target.Decrypt(deEncryptString));
        }