定义一个动物类,定义动物类的2个子类,定义一个测试类。要求动物类是抽象类。

# 定义抽象类Animal
from abc import ABC, abstractmethod

class Animal(ABC):
    def __init__(self, name, age, gender):
        self.name = name
        self.age = age
        self.gender = gender
        
    @abstractmethod
    def speak(self):
        pass

# 定义子类Cat
class Cat(Animal):
    def __init__(self, name, age, gender):
        super().__init__(name, age, gender)
        
    def speak(self):
        print(f"{self.name} says meow")
        
# 定义子类Dog
class Dog(Animal):
    def __init__(self, name, age, gender):
        super().__init__(name, age, gender)
        
    def speak(self):
        print(f"{self.name} says bark")

# 测试类
if __name__ == "__main__":
    cat = Cat("Tom", 3, "male")
    cat.speak() # 输出：Tom says meow
    
    dog = Dog("Jerry", 4, "female")
    dog.speak() # 输出：Jerry says bark