后三者的事件过程为：（假设被Fom对象识别） Sub Form_MouseDown(Button As Integer,Shift As Integer,X As Single,YAs Single) Sub Form_MouseUp(Button As Integer,Shift As Integer,X As Single,Y As Single) Sub Form_MouseMove(Button As Integer,Shift As Integer,X As Single,YAs Single)后三者的事件过程为：（假设被Form对象识别） Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) Sub Form_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)