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引用第3楼午小夜于2010-03-22 14:37发表的 :用QTimer,在timeoutSlot()中更新圖片内容,update。在paintEvent()中畫圖。
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引用第1楼午小夜于2010-03-22 14:03发表的 :have a look at the manual!A paint event is a request to repaint all or part of a widget. It can happen for one of the following reasons:repaint() or update() was invoked,.......