2. 计算机
  3. 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al,且取消其"可见"属性。运行时,可以使快捷菜单的菜单项响应鼠标左键单击和右健单击的事件过程是

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al,且取消其"可见"属性。运行时,可以使快捷菜单的菜单项响应鼠标左键单击和右健单击的事件过程是

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问题 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al,且取消其"可见"属性。运行时,可以使快捷菜单的菜单项响应鼠标左键单击和右健单击的事件过程是
选项 A、Private Sub Form_Mouse Down(Button As Integer, Shift As Integer,_X As Single,Y As Single
If Button=2 Then PopupMenu al,2
End Sub
B、Private Sub Form_Mouse Down(Button As Integer, Shift As Integer,_X As Single, Y As Single
PopupMenu al,0
End Sub
C、Private Sub Form_Mouse Down(Button As Integer, Shift As Integer,_X As Single,Y As Single
PopupMenu al
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 al
End Sub
答案C
解析 MouseDown事件用来响应鼠标单击,其中Button的参数用来确认鼠标按钮(1:左键;2:右键),PopupMenu 方法用以在指定坐标位置显示弹出式菜单,语法如下:[对象].PopupMenu 菜单名,标志,x,y。其中中x,y提供菜单显示位置;标志:指定快捷菜单的行为。
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本试题收录于： 二级VB题库NCRE全国计算机二级分类
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