任务二:实现多态(继承) 1. 设计一个动物类Animal,定义其属性name及weight,再定义一个带有名称及重量两个参数的构造方法,成员方法eat()、sleep()、breathe()、info()。 2. 设计动物类的子类Sheep以及Wolf,再分

别实现它们的特有属性和方法。

1. Animal类的实现

class Animal:
    def __init__(self, name, weight):
        self.name = name
        self.weight = weight
        
    def eat(self):
        print(f"{self.name} is eating.")
        
    def sleep(self):
        print(f"{self.name} is sleeping.")
        
    def breathe(self):
        print(f"{self.name} is breathing.")
        
    def info(self):
        print(f"Name: {self.name}, Weight: {self.weight}")

2. Sheep和Wolf类的实现

class Sheep(Animal):
    def __init__(self, name, weight, wool_color):
        super().__init__(name, weight)
        self.wool_color = wool_color
        
    def produce_wool(self):
        print(f"{self.name} produces {self.wool_color} wool.")
        
class Wolf(Animal):
    def __init__(self, name, weight, pack_size):
        super().__init__(name, weight)
        self.pack_size = pack_size
        
    def hunt(self):
        print(f"{self.name} hunts with pack size of {self.pack_size}.")

在Sheep和Wolf类中，我们使用了继承来继承了Animal类的属性和方法，并且添加了各自特有的属性和方法。

现在我们可以创建Sheep和Wolf的实例，并调用它们的方法了：

sheep = Sheep("Dolly", 50, "white")
wolf = Wolf("Luna", 70, 5)

sheep.info()
sheep.eat()
sheep.produce_wool()

wolf.info()
wolf.breathe()
wolf.hunt()

输出：

Name: Dolly, Weight: 50
Dolly is eating.
Dolly produces white wool.
Name: Luna, Weight: 70
Luna is breathing.
Luna hunts with pack size of 5.