PyQt5 Ctrl+组合键

def keyPressEvent(self,event):
    print("按下：" + str(event.key()))
    if event.key() == Qt.Key_S:
        if QApplication.keyboardModifiers() == Qt.ControlModifier:
            self.actionFile.save(self.action_text.toPlainText())
            self.status.showMessage("保存成功 %s" % self.file)