书上，真的用一个人穿衣打拌来讲解装饰模式的呢。
from abc import ABCMeta, abstractmethod
class Person(metaclass=ABCMeta):
def __init__(self, name):
self._name = name
@abstractmethod
def wear(self):
print("着装。。。")
class Engine(Person):
def __init__(self, name, skill):
super().__init__(name)
self.__skill = skill
def get_skill(self):
return self.__skill
def wear(self):
print("我是{}工程师{}。".format(self.get_skill(), self._name))
super().wear()
class Teacher(Person):
def __init__(self, name, title):
super().__init__(name)
self.__title = title
def get_title(self):
return self.__title
def wear(self):
print("我是{}{}。".format(self._name, self.get_title() ))
super().wear()
class ClothingDecorator(Person):
def __init__(self, person):
self._decorated = person
def wear(self):
self._decorated.wear()
self.decorate()
@abstractmethod
def decorate(self):
pass
class CasualPantDecorator(ClothingDecorator):
def __init__(self, person):
super().__init__(person)
def decorate(self):
print("一条卡其色休闲裤")
class BeltDecorator(ClothingDecorator):
def __init__(self, person):
super().__init__(person)
def decorate(self):
print("一条银色针扣头的黑色腰带")
class LeatherShoeDecorator(ClothingDecorator):
def __init__(self, person):
super().__init__(person)
def decorate(self):
print("一双深色休闲皮鞋")
class KnittedSweaterDecorator(ClothingDecorator):
def __init__(self, person):
super().__init__(person)
def decorate(self):
print("一件紫红色针织毛衣")
class WhiteShirtDecorator(ClothingDecorator):
def __init__(self, person):
super().__init__(person)
def decorate(self):
print("一件白色衬衫")
class GlassesDecorator(ClothingDecorator):
def __init__(self, person):
super().__init__(person)
def decorate(self):
print("一副方形黑框眼镜")
def test_decorator():
tony = Engine("Tony", "客户端")
pant = CasualPantDecorator(tony)
belt = BeltDecorator(pant)
shoes = LeatherShoeDecorator(belt)
shirt = WhiteShirtDecorator(shoes)
sweater = KnittedSweaterDecorator(shirt)
glasses = GlassesDecorator(sweater)
glasses.wear()
print()
decorator_teacher = GlassesDecorator(WhiteShirtDecorator(LeatherShoeDecorator(Teacher("wells", "教授"))))
decorator_teacher.wear()
test_decorator()
C:\Python36\python.exe C:/Users/Sahara/PycharmProjects/test1/test.py 我是客户端工程师Tony。 着装。。。 一条卡其色休闲裤 一条银色针扣头的黑色腰带 一双深色休闲皮鞋 一件白色衬衫 一件紫红色针织毛衣 一副方形黑框眼镜 我是wells教授。 着装。。。 一双深色休闲皮鞋 一件白色衬衫 一副方形黑框眼镜 Process finished with exit code 0