C#实现打字游戏

private void Form1_Load(object sender, EventArgs e)
    {
      this.panel1.BackColor = Color.White;
      timer1.Start();
      timer2.Start();
      timer1.Interval = 1000;
      timer2.Interval = 100;

      
      fj.Tag = "feiji";
      fj.Size = new Size(30, 40);
      fj.BackColor = Color.Black;
      fj.Text = "飞机";
      fj.TextAlign = ContentAlignment.MiddleCenter;
      fj.ForeColor = Color.White;
      fj.Location = new Point(panel1.Width / 2 - fj.Width / 2, panel1.Height - fj.Height);
      panel1.Controls.Add(fj);

      
    }
    Label fj = new Label();
    Random r = new Random();

    private void timer1_Tick(object sender, EventArgs e)
    {
      Label zm = new Label();
      zm.Tag = "zimu";
      zm.Text = ((char)r.Next(97, 123)).ToString();
      zm.Font = new Font("", r.Next(20, 30));
      zm.AutoSize = true;
      zm.Location = new Point(r.Next(0, panel1.Width - zm.Width), 0);
      zm.ForeColor = Color.FromArgb(r.Next(255), r.Next(255), r.Next(255));
      panel1.Controls.Add(zm);

      
    }

    private void timer2_Tick(object sender, EventArgs e)
    {
      foreach (Control item in panel1.Controls)
      {
        if (item.Tag.ToString() == "zimu"||item.Tag.ToString()=="zzm")
        {
          item.Top += 5;
          if (item.Top >= panel1.Height)
          {
            item.Dispose();
          }
        }else if (item.Tag.ToString() == "zidan")
        {
          item.Top -= 9;
          foreach (Control con in panel1.Controls)
          {
            if (con.Tag.ToString() == "zzm")
            {
              if (con.Top + con.Height >= item.Top)
              {
                con.Dispose();
                item.Dispose();

                SoundPlayer ply = new SoundPlayer();
                ply.SoundLocation = ".../.../Sound/MyBomb.wav";
                ply.Play();
              }
            }
          }
        }
      }
    }
    

    private void Form1_KeyPress(object sender, KeyPressEventArgs e)
    {
      foreach (Control item in panel1.Controls)
      {
        if (item.Tag.ToString() == "zimu")
        {
          if (item.Text == e.KeyChar.ToString())
          {
            Label zd = new Label();
            zd.Tag = "zidan";
            zd.Size = new Size(20, 20);
            item.Tag = "zzm";
            zd.BackColor = Color.Red;
            zd.Location = new Point(item.Left + item.Width / 2 - zd.Width / 2, fj.Top - fj.Height);
            fj.Left = item.Left + item.Width / 2 - fj.Width / 2;
            panel1.Controls.Add(zd);
            return;
          }
        }
      }
    }