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 45

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。

转载请注明原文地址:https://kaotiyun.com/show/sSmp777K

本试题收录于：二级VB题库NCRE全国计算机二级分类