C＃ Base64加密

       /// <summary>
        /// Base64加密
        /// </summary>
        /// <param name="codeName">加密采用的编码方式</param>
        /// <param name="source">待加密的明文</param>
        /// <returns></returns>
        public static string EncodeBase64(Encoding encode, string source)
        {
            string encodeStr = "";
            byte[] bytes = encode.GetBytes(source);
            try
            {
                encodeStr = Convert.ToBase64String(bytes);
            }
            catch
            {
                encodeStr = source;
            }
            return encodeStr;
        }