—— 请按键盘 空白键 开始游戏 ——

眼睛是什么也看不见的,一定要用心去看。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
The only limit to our realization of tomorrow will be our doubts of today.
The best way of learning about anything is by doing.
设计中最难的部分是保持功能的简洁。