/%E7%BB%A7%E6%89%BF/ Recent content in 继承 on 老张开工了 Hugo zh-cn Sat, 16 May 2026 00:00:00 +0000 /posts/2026/05/inheritance-polymorphism/ Sat, 16 May 2026 00:00:00 +0000 /posts/2026/05/inheritance-polymorphism/ 继承和多态是面向对象编程的核心特性。继承让代码复用成为可能，多态则让代码更加灵活和可扩展。本篇将深入探讨 Python 中的继承机制、多态的实现方式，以及常见的模式与最佳实践。 继承基础 继承允许一个类（子类）获取另一个类（父类）的属性和方法，从而实现代码复用。 class Animal: def __init__(self, name: str): self.name = name def eat(self) -> str: return f"{self.name} is eating" def sleep(self) -> str: return f"{self.name} is sleeping" class Dog(Animal): def bark(self) -> str: return f"{self.name} says Woof!" class Cat(Animal): def meow(self) -> str: return f"{self.name} says Meow!" dog = Dog("Buddy") cat = Cat("Kitty") # 继承的方法 print(dog.eat()) # Buddy is eating print(cat.sleep()) # Kitty is sleeping # 子类特有的方法 print(dog.