.net压缩功能实现方法

public static class compressor    {

            public static byte[] compress(byte[] data)
            {
                using (memorystream output = new memorystream())
                {
                    using (gzipstream gzip = new gzipstream(output, compressionmode.compress, true))
                    {
                        gzip.write(data, 0, data.length);
                        gzip.close();
                        return output.toarray();
                    }
                }
            }

            public static byte[] decompress(byte[] data)
            {
                using (memorystream input = new memorystream())
                {
                    input.write(data, 0, data.length);
                    input.position = 0;
                    using (gzipstream gzip = new gzipstream(input, compressionmode.decompress, true))
                    {
                        using (memorystream output = new memorystream())
                        {
                            byte[] buff = new byte[64];
                            int read = -1;
                            read = gzip.read(buff, 0, buff.length);
                            while (read > 0)
                            {
                                output.write(buff, 0, read);
                                read = gzip.read(buff, 0, buff.length);
                            }
                            gzip.close();
                            return output.toarray();
                        }
                    }
                }
            }