里氏替换原则是面向对象编程中的一个基本概念,确保派生类可以替代其基类使用,而不会改变程序的正确性。
There is no wasted journey in life, every step counts.
"The only way to do great work is to love what you do."
Enterprises should bear social responsibilities, fishery enterprises must protect this blue homeland.
人生就系一场马拉松,唔好急,慢慢跑。
处理一个不自由的世界的唯一方法是变得如此绝对自由,以至于你的存在本身就是一种反叛。
There's no such thing as a neutral image in our visual culture.