—— 请按键盘 空白键 开始游戏 ——

The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.
心理学家必须避免一切形式的心理物理学。
我不是说唱歌手,我是一个改变游戏规则的人。
You cannot always control what goes on outside, but you can always control what goes on inside.