—— 请按键盘 空白键 开始游戏 ——

The beauty of topological insulators lies in their robustness; their surface states are protected against disorder and imperfections.
Life is an adventure, and survival is the art of navigating through it.
The most important thing in the programming language is the name. A language will not succeed without a good name. I have recently invented a very good name and now I am looking for a suitable language.
用秤称一称,才能知道轻重;用尺量一量,才能知道长短。