相当于zlib.decompress的C#

using System;
using System.IO;
using System.IO.Compression;

public class Program
{
    public static void Main()
    {
        // 压缩数据
        byte[] compressedData = CompressData("Hello, World!");

        // 解压缩数据
        string decompressedData = DecompressData(compressedData);

        Console.WriteLine(decompressedData);
    }

    // 压缩数据
    public static byte[] CompressData(string data)
    {
        byte[] buffer = System.Text.Encoding.UTF8.GetBytes(data);

        using (MemoryStream memoryStream = new MemoryStream())
        {
            using (DeflateStream deflateStream = new DeflateStream(memoryStream, CompressionMode.Compress))
            {
                deflateStream.Write(buffer, 0, buffer.Length);
            }

            return memoryStream.ToArray();
        }
    }

    // 解压缩数据
    public static string DecompressData(byte[] compressedData)
    {
        using (MemoryStream memoryStream = new MemoryStream(compressedData))
        {
            using (DeflateStream deflateStream = new DeflateStream(memoryStream, CompressionMode.Decompress))
            {
                using (StreamReader streamReader = new StreamReader(deflateStream))
                {
                    return streamReader.ReadToEnd();
                }
            }
        }
    }
}