如何在c#中使用Zlib压缩与解压

// 使用System.IO.Compression进行Deflate压缩
public static byte[] MicrosoftCompress(byte[] data)
{
    MemoryStream uncompressed = new MemoryStream(data); // 这里举例用的是内存中的数据；需要对文本进行压缩的话，使用 FileStream 即可
    MemoryStream compressed = new MemoryStream();
    DeflateStream deflateStream = new DeflateStream(compressed, CompressionMode.Compress); // 注意：这里第一个参数填写的是压缩后的数据应该被输出到的地方
    uncompressed.CopyTo(deflateStream); // 用 CopyTo 将需要压缩的数据一次性输入；也可以使用Write进行部分输入
    deflateStream.Close();  // 在Close中，会先后执行 Finish 和 Flush 操作。
    byte[] result = compressed.ToArray();
    return result;
}

// 使用System.IO.Compression进行Deflate解压
public static byte[] MicrosoftDecompress(byte[] data)
{
    MemoryStream compressed = new MemoryStream(data);
    MemoryStream decompressed = new MemoryStream();
    DeflateStream deflateStream = new DeflateStream(compressed, CompressionMode.Decompress); // 注意： 这里第一个参数同样是填写压缩的数据，但是这次是作为输入的数据
    deflateStream.CopyTo(decompressed); 
    byte[] result = decompressed.ToArray();
    return result;
}

public static byte[] ZLibDotnetCompress(byte[] data)
{
    MemoryStream compressed = new MemoryStream();
    ZOutputStream outputStream = new ZOutputStream(compressed, 2); 
    outputStream.Write(data, 0, data.Length); // 这里采用的是用 Write 来写入需要压缩的数据；也可以采用和上面一样的方法
    outputStream.Close();
    byte[] result = compressed.ToArray();
    return result;
}

public static byte[] ZLibDotnetDecompress(byte[] data, int size)
{
    MemoryStream compressed = new MemoryStream(data);
    ZInputStream inputStream = new ZInputStream(compressed);
    byte[] result = new byte[size];   // 由于ZInputStream 继承的是BinaryReader而不是Stream, 只能提前准备好输出的 buffer 然后用 read 获取定长数据。
    inputStream.read(result, 0, result.Length); // 注意这里的 read 首字母是小写
    return result;
}

public static byte[] SharpZipLibCompress(byte[] data)
{
    MemoryStream compressed = new MemoryStream();
    DeflaterOutputStream outputStream = new DeflaterOutputStream(compressed);
    outputStream.Write(data, 0, data.Length);
    outputStream.Close();
    return compressed.ToArray();
}

public static byte[] SharpZipLibDecompress(byte[] data)
{
    MemoryStream compressed = new MemoryStream(data);
    MemoryStream decompressed = new MemoryStream();
    InflaterInputStream inputStream = new InflaterInputStream(compressed);
    inputStream.CopyTo(decompressed);
    return decompressed.ToArray();
}

Length of Short Data: 144
Length of Long Data: 1685502

============================================
Compress and decompress with Microsoft Zlib Compression (1000 times): 54
Compress and decompress with Microsoft Zlib Compression (long data 100 times): 7924

============================================
Compress and decompress with Zlib.net Compression (1000 times): 254
Compress and decompress with Zlib.net Compression (long data 100 times): 9924

============================================
Compress and decompress with SharpZipLib Compression (1000 times): 442
Compress and decompress with SharpZipLib Compression (long data 100 times): 26782