pythonconsolewidget.py 文件源码

def keyReleaseEvent(self, event):

        if event.type() == QEvent.KeyRelease:

            if event.key() == Qt.Key_Up:
                current = max(0, self.current - 1)
                if 0 <= current < len(self.history):
                    self.setText(self.history[current])
                    self.current = current

                event.accept()

            elif event.key() == Qt.Key_Down:
                current = min(len(self.history), self.current + 1)
                if 0 <= current < len(self.history):
                    self.setText(self.history[current])
                else:
                    self.clear()
                self.current = current

                event.accept()