91 lines
2.4 KiB
Python
91 lines
2.4 KiB
Python
"""
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实例：
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汤宝宝开了一家服装租赁店，好多客人来店里租衣服~
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"""
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from abc import ABC, abstractmethod
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# 享元接口
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class ClothingInterface(ABC):
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@abstractmethod
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def show(self):
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pass
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class Clothing(ClothingInterface):
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"""享元对象 - 服装"""
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style: str
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size: str
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color: str
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def __init__(self, style: str, size: str, color: str):
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self.style = style
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self.size = size
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self.color = color
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def show(self):
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print(f"服装款式: {self.style}, 尺码: {self.size}, 颜色: {self.color}")
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class ClothingFactory:
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"""享元工厂 - 服装店"""
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_clothing_pool: dict[str, ClothingInterface]
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def __init__(self):
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self._clothing_pool = {}
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def get_clothing(self, style: str, size: str, color: str) -> ClothingInterface:
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key = f"{style}-{size}-{color}"
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if key not in self._clothing_pool:
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self._clothing_pool[key] = Clothing(style, size, color)
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return self._clothing_pool[key]
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def show_stock(self):
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print("\n服装库存:")
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for key, clothing in self._clothing_pool.items():
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print(f"Keys: {key} -> ", end="")
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clothing.show()
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class Customer:
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name: str
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clothing: list[ClothingInterface]
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def __init__(self, name: str):
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self.name = name
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self.clothing = []
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def rent_clothing(self, clothing: ClothingInterface):
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self.clothing.append(clothing)
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print(f"{self.name} 租了一件服装: ", end="")
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clothing.show()
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def show_clothing(self):
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print(f"\n客人{self.name} 租赁的服装有:")
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for clothing in self.clothing:
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clothing.show()
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if __name__ == "__main__":
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print("============= 享元模式 =============")
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factory = ClothingFactory()
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# 客人1租衣服
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customer1 = Customer("小红")
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customer1.rent_clothing(factory.get_clothing("连衣裙", "M", "红色"))
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customer1.rent_clothing(factory.get_clothing("牛仔裤", "L", "蓝色"))
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# 客人2租衣服
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customer2 = Customer("小明")
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customer2.rent_clothing(factory.get_clothing("连衣裙", "M", "红色"))
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customer2.rent_clothing(factory.get_clothing("西裤", "S", "白色"))
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print()
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# 显示租赁情况
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customer1.show_clothing()
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customer2.show_clothing()
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# 显示服装库存
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factory.show_stock()
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print("\n=========== 享元模式结束 ===========")
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