python 监控键盘事件

from pynput import keyboard

# 按下后执行
def on_press(key):
    try:
        if key == keyboard.KeyCode.from_char('enter'):
            pass
        elif key == keyboard.Key.left:
            print("1")
        elif key == keyboard.Key.right:
            print("2")
        elif key == keyboard.Key.up:
            print("3")
        elif key == keyboard.Key.down:
            print("3")
        elif key == keyboard.KeyCode.from_char('q'):
            exit(-1)

    except AttributeError:
        print('special key {0} pressed'.format(key))


# 弹起时执行
def on_release(key):
    print('{0} released'.format(key))
    if key == keyboard.Key.esc:
        return False


if __name__ == '__main__':
    with keyboard.Listener(
            on_press=on_press,
            on_release=on_release) as listener:
        listener.join()