里氏替换原则是面向对象编程中的一个基本概念,它指出子类的对象应该能够替换超类的对象而不影响程序的正确性。
忠于自己和你的艺术。
沉默可能是共谋。
农业的未来在于科技与自然的和谐共生,我们要用智慧守护每一片绿色。
The real hero is the one who fights even though he is terrified.
The only thing that matters is the work. If you focus on the work, everything else will fall into place.