public static byte[] CompressByDeflateDotNetZip(string input, string fileName)
    {
      using (var msInut = new MemoryStream(Encoding.UTF8.GetBytes(input)))
      {
        using (var compressedStream = new MemoryStream())
        {
          using (var zipOutStream = new ZipOutputStream(compressedStream))
          {
            zipOutStream.CompressionMethod = CompressionMethod.Deflate;
            zipOutStream.EnableZip64 = Zip64Option.AsNecessary;
            zipOutStream.PutNextEntry(fileName);
            msInut.CopyTo(zipOutStream);
          }
          return compressedStream.ToArray();
        }
      }
    }