—— 请按键盘 空白键 开始游戏 ——

The best way to cheer yourself up is to try to cheer somebody else up.
It is no use saying, 'We are doing our best.' You have got to succeed in doing what is necessary.
A man is a dangerous thing, a man who has nothing to lose is even more dangerous.
偏差和方差之间的权衡是机器学习中的一个基本概念。