对象写入文件和从文件中重构到对象

                //将对象写入文件中
                Game game = new Game();
                game.Level = 2;
                game.Player = "Tom";
                FileStream fs = new FileStream(@"game.bak",FileMode.OpenOrCreate,FileAccess.Write);
                StreamWriter sw = new StreamWriter(fs);
                sw.WriteLine(game.Player);
                sw.WriteLine(game.Level);
                sw.Flush();
                sw.Close();
               //将文件重构成对象
                Game game = new Game();
                FileStream fs = new FileStream(@"game.bak", FileMode.Open, FileAccess.Read);
                StreamReader sr = new StreamReader(fs);
                game.Player = sr.ReadLine();
                game.Leveal = sr.ReadLine();
                sr.Close();