—— 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.
人工智能的终极目标是服务人类社会,提升人们的生活水平。
没有夕阳产业,只有夕阳思维。
I'm not a brand. I'm a human being.