如何在C＃中压缩数据以在zlib python中解压缩

Question

我有一个采用默认参数的python zlib解压缩器，其中数据为字符串：

  import zlib
  data_decompressed = zlib.decompress(data)

但是，我不知道如何在c＃中压缩字符串以在python中解压缩。我已经完成了下一段代码，但是当我尝试解压缩“不正确的标头检查”异常时，出现了错误。

    static byte[] ZipContent(string entryName)
    {
        // remove whitespace from xml and convert to byte array
        byte[] normalBytes;
        using (StringWriter writer = new StringWriter())
        {
            //xml.Save(writer, SaveOptions.DisableFormatting);
            System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
            normalBytes = encoding.GetBytes(writer.ToString());
        }

        // zip into new, zipped, byte array
        using (Stream memOutput = new MemoryStream())
        using (ZipOutputStream zipOutput = new ZipOutputStream(memOutput))
        {
            zipOutput.SetLevel(6);

            ZipEntry entry = new ZipEntry(entryName);
            entry.CompressionMethod = CompressionMethod.Deflated;
            entry.DateTime = DateTime.Now;
            zipOutput.PutNextEntry(entry);

            zipOutput.Write(normalBytes, 0, normalBytes.Length);
            zipOutput.Finish();

            byte[] newBytes = new byte[memOutput.Length];
            memOutput.Seek(0, SeekOrigin.Begin);
            memOutput.Read(newBytes, 0, newBytes.Length);

            zipOutput.Close();

            return newBytes;
        }
    }

有人可以帮我吗？谢谢。

更新1：

我尝试过使用Shial Bhaiji发布的defalte功能：

    public static byte[] Deflate(byte[] data)
    {
        if (null == data || data.Length < 1) return null;
        byte[] compressedBytes;

        //write into a new memory stream wrapped by a deflate stream
        using (MemoryStream ms = new MemoryStream())
        {
            using (DeflateStream deflateStream = new DeflateStream(ms, CompressionMode.Compress, true))
            {
                //write byte buffer into memorystream
                deflateStream.Write(data, 0, data.Length);
                deflateStream.Close();

                //rewind memory stream and write to base 64 string
                compressedBytes = new byte[ms.Length];
                ms.Seek(0, SeekOrigin.Begin);
                ms.Read(compressedBytes, 0, (int)ms.Length);

            }
        }
        return compressedBytes;
    }

问题是，要在python代码中正常工作，我必须添加“ -zlib.MAX_WBITS”参数进行解压缩，如下所示：

    data_decompressed = zlib.decompress(data, -zlib.MAX_WBITS)

所以，我的新问题是：是否可以在C＃中编写一个deflate方法，该方法的压缩结果可以使用zlib.decompress（data）作为默认值进行解压缩？

Answer 1

在C＃中，DeflateStream类支持zlib。参见：

https://docs.microsoft.com/en-us/dotnet/api/system.io.compression.deflatestream?view=netframework-4.8