Created
February 17, 2019 15:47
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import random | |
class PetShop(object): | |
"""Cửa hàng thú cưng""" | |
def __init__(self, animal_factory=None): | |
"""pet_factory là abstract factory. Chúng ta có thể tuỳ ý lựa chọn pet""" | |
self.pet_factory = animal_factory | |
def show_pet(self): | |
"""Tạo và hiển thị pet bằng abstract factory""" | |
pet = self.pet_factory() | |
print("We have a lovely {}".format(pet)) | |
print("It says {}".format(pet.speak())) | |
class Dog(object): | |
def speak(self): | |
return "woof" | |
def __str__(self): | |
return "Dog" | |
class Cat(object): | |
def speak(self): | |
return "meow" | |
def __str__(self): | |
return "Cat" | |
# Tạo random animal | |
def random_animal(): | |
"""Thú cưng được chọn ngẫu nhiên!""" | |
return random.choice([Dog, Cat])() | |
# Hiển thị pets với các factory khác nhau | |
if __name__ == "__main__": | |
# Shop này chỉ bán mèo | |
cat_shop = PetShop(Cat) | |
cat_shop.show_pet() | |
print("") | |
# Shop này bán pet ngẫu nhiên | |
shop = PetShop(random_animal) | |
for i in range(3): | |
shop.show_pet() | |
print("=" * 20) | |
### OUTPUT ### | |
# We have a lovely Cat | |
# It says meow | |
# | |
# We have a lovely Dog | |
# It says woof | |
# ==================== | |
# We have a lovely Cat | |
# It says meow | |
# ==================== | |
# We have a lovely Cat | |
# It says meow | |
# ==================== |
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