—— 请按键盘 空白键 开始游戏 ——

There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.
The best way to predict your future is to create it.
When safety competes with production, safety always wins.
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
最有效的调试工具仍然是仔细的思考,再加上明智地放置的打印语句。