在python中继承和覆盖__init__

class Animal:
    def __init__(self, name):
        self.name = name

    def speak(self):
        pass

class Dog(Animal):
    def __init__(self, name, breed):
        super().__init__(name)
        self.breed = breed

    def speak(self):
        return "Woof!"

my_dog = Dog("Fido", "Golden Retriever")
print(my_dog.name)
print(my_dog.breed)
print(my_dog.speak())