如果鼠标右键被按下，下列代码将显示特定的 弹出式菜单：

C#CopyCode image复制代码
private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) {
    if(e.Button == MouseButtons.Right)
        popupMenu1.ShowPopup(Control.MousePosition);
}
Visual BasicCopyCode image复制代码
Private Sub Form1_MouseUp(ByVal sender As Object, _
  ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseUp
    If e.Button = MouseButtons.Right Then
        PopupMenu1.ShowPopup(Control.MousePosition)
    End If
End Sub