Question

我有一个解压缩字节数组的方法，我需要与此功能相反的方法（平均压缩）。我做了很多事情，但并未发现与此功能完全相反

public static byte[] Decompress(byte[] B)
{

        MemoryStream ms = new MemoryStream(B);
        GZipStream gzipStream = new GZipStream((Stream)ms, CompressionMode.Decompress);
        byte[] buffer = new byte[4];
        ms.Position = checked(ms.Length - 5L);
        ms.Read(buffer, 0, 4);
        int count = BitConverter.ToInt32(buffer, 0);
        ms.Position = 0L;
        byte[] AR = new byte[checked(count - 1 + 1)];
        gzipStream.Read(AR, 0, count);
        gzipStream.Dispose();
        ms.Dispose();
        return AR;

}

Answer 1

您已经使解压缩部分复杂化了。您可以通过纯粹的流和复制来实现大部分所需的功能。

        private byte[] Compress(byte[] data)
        {
            using (var compressedStream = new MemoryStream())
            using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress))
            {
                zipStream.Write(data, 0, data.Length);
                return compressedStream.ToArray();
            }
        }

        private byte[] Decompress(byte[] data)
        {
            using (var compressedStream = new MemoryStream(data))
            using (var zipStream = new GZipStream(compressedStream, CompressionMode.Decompress))
            using (var resultStream = new MemoryStream())
            {
                zipStream.CopyTo(resultStream);
                return resultStream.ToArray();
            }
        }

在C＃中压缩byte []

1 个答案: