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(Button As Integer,Shift_ As Integer,X As Single,Y As Single) Print“Up” End Sub
A. DownUpClick
B. ClickDownUp
C. DownClickUp
D. UpDownClick