.net Base64加密解密(和js的Base64加密解密可以互用)

/// <summary>
        /// Base64加密
        /// </summary>
        /// <param name="code">明文</param>
        /// <returns>密文</returns>
        public static string EncodeBase64(string code)
        {
            string encode = "";
            try
            {
                byte[] bytes = Encoding.GetEncoding(Encoding.UTF8.CodePage).GetBytes(code);
                encode = Convert.ToBase64String(bytes);
            }
            catch
            {
                encode = code;
            }
            return encode;
        }

/// <summary>
        /// Base64解密
        /// </summary>
        /// <param name="code">密文</param>
        /// <returns>明文</returns>
        public static string DecodeBase64(string code)
        {
            string decode = "";
            try
            {
                byte[] bytes = Convert.FromBase64String(code);
                decode = Encoding.GetEncoding(Encoding.UTF8.CodePage).GetString(bytes);
            }
            catch
            {
                decode = code;
            }
            return decode;
        }