学步园

创建如下类，目的是方便使用GZipStream类：

    public class GZip
    {
        public static byte[] Compress(byte[] data)
        {
            MemoryStream stream = new MemoryStream();
            GZipStream gZipStream = new GZipStream(stream, CompressionMode.Compress);
            gZipStream.Write(data, 0, data.Length);
            gZipStream.Close();
            return stream.ToArray();
        }

        public static byte[] Decompress(byte[] data)
        {
            MemoryStream stream = new MemoryStream();

            GZipStream gZipStream = new GZipStream(new MemoryStream(data), CompressionMode.Decompress);
           
            byte[] bytes = new byte[40960];
            int n;
            while ((n = gZipStream.Read(bytes, 0, bytes.Length)) != 0)
            {
                stream.Write(bytes, 0, n);
            }
            gZipStream.Close();
            return stream.ToArray();
        }
    }

    用Compress进行压缩，用Decompress进行解压缩。该类需要有如下引用：

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

使用方法：

            byte[] byteString=UnicodeEncoding.ASCII.GetBytes("abcd123456789");
            byte[] gzipString = GZip.Compress(byteString);
            byteString = GZip.Decompress(gzipString);
            MessageBox.Show(UnicodeEncoding.ASCII.GetString(byteString));

转自：http://stanfordxu.blog.163.com/blog/static/7089328620095223229977/