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窗体的 MouseDown事件过程Form MouseDown(ButtonAsInteger,ShifiAsInteger, XAsSingle,YAsSingle)有4个参数,关于这些参数正确的描...

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用鼠标右键单击窗体中无控件的部分,会执行窗体的FormLoad事件过程  用鼠标左键单击窗体的标题栏,会执行窗体的Form_Click事件过程  只载入而不显示窗体,也会执行窗体的Form_Load事件过程  载入窗体后,每次显示该窗体时,都会执行窗体的Form_Click事件过程  
Form1_MouseDown  Win_MouseDown  Form_MouseDown  MouseD0wn_Form1  
Form1_MouseDown  Win_MouseDown  Form MouseDown  MouseDown Form1  
Private Sub Form_MouseDown(Button As Integer,Shift As Integer,_X As Single,Y As Single)   If Button=2 Then PopupMenu al,2  End Sub  Private Sub Form_MouseDown(Button As Integer,Shift As Integer,_X As Single,Y As Single   PopupMenu al,0  End Sub  Private Sub Form_MouseDown(Button As Integer,Shift As Integer,_X As Single,Y As Single   PopupMenu al  End Sub  Private Sub Form MouseDown(Button As Integer,Shift As Integer,_X As Single,Y As Single   If(Button=vbLetfButton)Or(Button=vbRightButton)Then PopupMenu al  End Sub  
用鼠标右键单击窗体中无控件的部分,会执行窗体的Form Load事件过程  用鼠标左键单击窗体的标题栏,会执行窗体的Form Click事件过程  只装入而不显示窗体,也会执行窗体的Form Load事件过程  装入窗体后,每次显示该窗体时,都会执行窗体的Form Click事件过程  
用鼠标右键单击窗体中任何无控件部分,会执行窗体的Form—Load事件过程  用鼠标左键单击窗体的标题栏,会执行窗体的Form—Click事件过程  只装入而不显示窗体,也会执行窗体的Form—Load事件过程  装入窗体后,每次显示该窗体时,都会执行窗体的Form—Click事件过程  
Form_Load  Form_Click  Form_MouseDown  Form_KeyPress  
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用鼠标右键单击窗体中任何无控件部分,会执行窗体的Form_Load事件过程  用鼠标左键单击窗体的标题栏,会执行窗体的Form_Click事件过程  只装入而不显示窗体,也会执行窗体的Form_Load事件过程  装入窗体后.每次显示该窗体时,都会执行窗体的Form_Click事件过程  
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Private Sub Form_MouseDown(Button As Integer, Shift As Integer,_                X As Single, Y As Single)    If Button=2 Then PopupMenu Bt, 2   End Sub  Private Sub Form_MouseDown(Button As Integer, Shift As Integer, _                X As Single, Y As Single)    PopupMenu Bt   End Suh  Private Sub Form MouseDown(Button As Integer, Shift As Integer, _                X As Single, Y As Single)    PopupMenu Bt,0   End Sub  Private Sub Form_MouseDown(Button As Integer, Shift As Integer, _                X As Single, Y As Single)    If (Button=vbLeftButton) Or ( Button=vbRightButton) Then PopupMenu Bt   End Sub  
Private Sub Form_MouseDown(Button As Integer,Shift As Integer,_X As Single,Y As Single)   If Button=2 Then PopupMenu Bs,2 End Sub  Private Sub Form_MouseDown(Button As Integer,Shift As Integer,_X As Single,Y As Single)   PopupMenu Bs End Sub  Private Sub Form_MouseDown(Button As Integer,Shift As Integer,_X As Single,Y As Single)   PopupMenu Bs,0 End Sub  Private Sub Form_MouseDown(Button As Integer,Shift As Integer,_X As Single,Y AS Single)   If(Button=vbLeftButton)Or(Button=vbRightButton)Then PopupMenu Bs End Sub  

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