—— 请按键盘 空白键 开始游戏 ——

The Liskov Substitution Principle is a fundamental concept in object-oriented programming, ensuring that derived classes can be used in place of their base classes without altering the correctness of the program.
I don’t know if we each have a destiny, or if we’re all just floating around accidental—like on a breeze.
当我们无法谈论某件事时,它就变得危险。
"We're living proof that dreams do come true."
资源开发必须在经济增长和环境管理之间取得平衡。