C# 解压缩文件

public void YaSuo()
        {
            using (FileStream fsRead = File.OpenRead(@"F:\MVC5_Demo\Project4YaSuo\Project4YaSuo\Files\笔记.txt"))
            {
                //创建写入文件的流
                using (FileStream fsWrite = File.OpenWrite(@"F:\MVC5_Demo\Project4YaSuo\Project4YaSuo\Files\yasuo.rar"))
                {
                    //创建压缩流
                    using (GZipStream zipStream = new GZipStream(fsWrite, CompressionMode.Compress))
                    {
                        //每次读取1024byte
                        byte[] byts = new byte[1024 * 10];
                        int len = 0;
                        while ((len = fsRead.Read(byts, 0, byts.Length)) > 0)
                        {
                            zipStream.Write(byts, 0, len);//通过压缩流写入文件
                        }
                    }
                }
            }
        }

public void JieYa()
        {
            //读取压缩文件
            using (FileStream fsRead = File.OpenRead(@"F:\MVC5_Demo\Project4YaSuo\Project4YaSuo\Files\yasuo.rar"))
            {
                //创建压缩流
                using (GZipStream gzipStream = new GZipStream(fsRead, CompressionMode.Decompress))
                {
                    using (FileStream fsWrite = File.OpenWrite(@"F:\MVC5_Demo\Project4YaSuo\Project4YaSuo\Files\笔记.txt"))
                    {
                        byte[] byts = new byte[1024 * 10];
                        int len = 0;
                        //写入新文件
                        while ((len = gzipStream.Read(byts, 0, byts.Length)) > 0)
                        {
                            fsWrite.Write(byts, 0, len);
                        }
                    }

                }
            }
        }