<人人都懂设计模式>-装饰模式

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