我想压缩一个byte []并返回一个byte [](I want to compress a byte[] and return a byte[])

我想在C＃中编写一个方法，它接受一个byte []并将其压缩到另一个byte []，但我能找到的是从目录压缩到另一个目录（ ZipFile库）的库。

是否可以仅使用.NET平台？

I want to write a method in C# that takes a byte[] and compress it to another byte[], but all I can find is libraries that compress from a directory to another directory (the ZipFile library).

Is it possible to do using only the .NET platform?

最满意答案

是否可以仅使用.NET平台？

当然 - 这正是System.IO.Compression命名空间的用途。例如，您可以使用GZipStream类。使用MemoryStream接收压缩数据，然后您可以调用ToArray 。

示例代码（未经测试）：

public static byte[] Compress(byte[] data) { using (var output = new MemoryStream()) { using (var compression = new GZipStream(output, CompressionMode.Compress)) { compression.Write(data, 0, data.Length); } return output.ToArray(); } } public static byte[] Compress(byte[] data) { using (var output = new MemoryStream()) { using (var compression = new GZipStream(output, CompressionMode.Decompress)) { compression.Write(data, 0, data.Length); } return output.ToArray(); } }

您还可以使用DeflateStream作为替代压缩格式。

Is it possible to do using only the .NET platform?

Sure - that's exactly what the System.IO.Compression namespace is for. For example, you could use the GZipStream class. Use a MemoryStream to receive the compressed data, and then you can call ToArray afterwards.

Sample code (untested):

public static byte[] Compress(byte[] data) { using (var output = new MemoryStream()) { using (var compression = new GZipStream(output, CompressionMode.Compress)) { compression.Write(data, 0, data.Length); } return output.ToArray(); } } public static byte[] Compress(byte[] data) { using (var output = new MemoryStream()) { using (var compression = new GZipStream(output, CompressionMode.Decompress)) { compression.Write(data, 0, data.Length); } return output.ToArray(); } }

You could also use DeflateStream as an alternative compression form.

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