—— 请按键盘 空白键 开始游戏 ——

The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.
We never take our success for granted.
高效算法的开发既是一门艺术,也是一门科学。