pyqt5中菜单栏点击事件没法响应closeEvent()事件！！跪求答案！！！！！

很少说，先上代码：python class Ui_MainWindow(QtWidgets.QMainWindow): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(1154, 809) self.CAM_NUM

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