执行下列程序后,鼠标单击窗体,输出结果为 Private Sub Form_Click（) Print "Click"; End Sub Pri

执行下列程序后,鼠标单击窗体,输出结果为

Private Sub Form_Click()

Print "Click";

End Sub

Private Sub Form_mouseDown(Button As Integer,Shift

As Integer, X As Single, Y As Single)

Print "Donw"

End Sub

Private Sub Form_MouseUp(ButtonAsInteger,Shift

As Integer, X As Single, Y As Single)

Print "Up"

End Sub

A．DownUpClick

B．ClickDownUp

C．DownClickUp

D．UpDownClick