PyQt

添加图标

class WindowGUI(QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(WindowGUI, self).__init__()
        self.setupUi(self)
        #这里添加了一个图标
        self.setWindowIcon(QIcon('./Data/SerialBlack.ico'))
        self.pushButton.clicked.connect(self.Butt)

if __name__ == '__main__':
    # 每一pyqt5应用程序必须创建一个应用程序对象。sys.argv参数是一个列表，从命令行输入参数。
    app = QApplication(sys.argv)
    window = WindowGUI()
    window.show()
    sys.exit(app.exec_())

退出确认

class WindowGUI(QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(WindowGUI, self).__init__()
        self.setupUi(self)
    #关闭窗口产生 QCloseEvent
    def closeEvent(self, event):
        reply = QMessageBox.question(self, 'Message',
                                     "Are you sure to quit?", QMessageBox.Yes |
                                     QMessageBox.No, QMessageBox.No)
        if reply == QMessageBox.Yes:
            event.accept()
        else:
            event.ignore()

if __name__ == '__main__':
    # 每一pyqt5应用程序必须创建一个应用程序对象。sys.argv参数是一个列表，从命令行输入参数。
    app = QApplication(sys.argv)
    window = WindowGUI()
    window.show()
    sys.exit(app.exec_())