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设已经在菜单编辑器中设计了窗体的快捷菜单,某顶级菜单为a1,且取消其“可见”属性
题目内容:
[单选题]设已经在菜单编辑器中设计了窗体的快捷菜单,某顶级菜单为a1,且取消其“可见”属性。运行时,以下( )事件过程可以使快捷菜单的菜单项响应鼠标左键单击和右键单击。
A.Private Sub Form_Mouse Down(Button As Integer,Shift As Integer,_X As Single,Y As Single) If Button=2 Then PopupMenu a1,2 End Sub
B.Private Sub Form. Mouse Down(Button As Integer,Shift As Integer,_X As Single,Y As Single) PopupMenu a1,0 End Sub
C.Private Sub Form_Mouse Down(Button As Imeger,Shift As Integer,_X As Single,Y As Single) PopupMenu a1 End Sub
D.Private Sub Form_Mouse Down(Button As Integer,Shift As Integer,_X As Single,Y As Single) If (Button=vbLetfButton)Or(Button=vbRightButton)Then PopupMenu a1 End Sub
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