Question

VB鼠标Click事件求助？

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
为什么运行结果是 DnowUpClick
不是按顺序ClickDonwUp吗

Answer 1

因为按键的动作是悔指睁碧岁先down再up
click是按下down，逗埋抬起up之后才会触发click事件的

Answer 2

想象一下罩铅岩如果自己定义click事物御件该怎么说？click event一定是MouseDown然后再MouseUp之后才会激键完整形成的阿

Answer 3

Down表袭枯梁示按下; Up表示松开; Click表示点击拍运败森; 有时候刚按下, 又觉得不对,移开鼠标再松开就相当于没点; 所以运行结果是 Click在Up之后.