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问题: VB的问题

Private Sub Command1_MouseDown(button As Integer , shift As Integer , _
Rem 鼠标按下事件的命令调用过程 X As Single ,Y As Single)
错在哪了?

解答:

应为
Private Sub Command1_MouseDown(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)