private void Form1_FormClosing(object sender, FormClosingEventArgs e)        {                if (e.CloseReason == CloseReason.UserClosing)//当用户点击窗体右上角X按钮或(Alt + F4)时 发生                {                         e.Cancel = true;                         this.ShowInTaskbar = false;                        this.myIcon.Icon = this.Icon;                         this.Hide();                }          }                   private void myIcon_MouseClick(object sender, MouseEventArgs e)          {              if (e.Button == MouseButtons.Right)               {                       myMenu.Show();               }                  if (e.Button == MouseButtons.Left)               {                    this.Visible = true;                    this.WindowState = FormWindowState.Normal;                                }         }                   private void toolMenuCancel_Click(object sender, EventArgs e)          {                 Application.Exit();          }