1、简单工厂模式
class Cat: def eat(self): print('猫在吃东西！！') class Dog: def eat(self): print('狗在吃东西！！') class Human: def eat(self): print('人在吃东西！！') class Factory: def create(self,name): f = None if name == 'dog': f = Dog() elif name == 'cat': f = Cat() elif name == 'human': f = Human() return f def main(): f1 = Factory() f2 = f1.create('dog') f2.eat() f3 = f1.create('cat') f3.eat() main()2、抽象工厂模式
class Cat: def eat(self): print('猫在吃东西！！') class Dog: def eat(self): print('狗在吃东西！！') class PetShop: def __init__(self,animal): self.animal = animal def show(self): pet = self.animal.create() pet.eat() class DogCreate: def create(self): return Dog() class CatCreate: def create(self): return Cat() def main(): f1 = DogCreate() f2 = CatCreate() pet1 = PetShop(f1) pet2 = PetShop(f2) pet1.show() pet2.show() main()