2. 计算机
  3. 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

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

admin2010-11-20  21
问题 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
选项 A、DownUpClick       
B、ClickDownUp
C、DownClickUp
D、UpDownClick
答案A
解析 鼠标单击时,依次引发MouseDown、MouseUp和Click事件,即Click事件包含鼠标按下和放开事件。
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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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