序列化和反序列化效果图：

序列化和反序列化代码：

需要添加两个命名空间：using System.IO;using System.Runtime.Serialization.Formatters.Binary;List
     
       allgame = new List
      
       ();        private void button1_Click(object sender, EventArgs e)        {            string name = textBox1.Text.Trim();            string type = textBox2.Text.Trim();            string time = textBox3.Text.Trim();            Game gm = new Game(name, type, time);            allgame.Add(gm);            MessageBox.Show("添加成功");        }        private void button2_Click(object sender, EventArgs e)        {            FileStream fs = new FileStream("game.bin", FileMode.Create);            BinaryFormatter bf = new BinaryFormatter();            bf.Serialize(fs, allgame);            fs.Close();            MessageBox.Show("序列化成功");        }        private void button3_Click(object sender, EventArgs e)        {            Form1 from = new Form1();            from.ShowDialog();        }        private void Form1_Load(object sender, EventArgs e)        {            //反序列化            FileStream fs = new FileStream("game.bin", FileMode.Open);            BinaryFormatter bf = new BinaryFormatter();            List
       
         gm = (List
        
         )bf.Deserialize(fs);            fs.Close();            foreach (Game game in gm)            {                textBox4.Text += game.Name + " " + game.Type + " " + game.Time;            }        }