68 lines
1.4 KiB
Python
68 lines
1.4 KiB
Python
"""
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实例
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汤宝宝成为了一个电子画家，但是不同形状的笔刷和不同颜色颜料的组合让他犯了难...
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"""
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from abc import ABC, abstractmethod
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# 抽象类
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class Paint(ABC):
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@abstractmethod
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def use(self) -> str:
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pass
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class Brush(ABC):
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@abstractmethod
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def draw(self) -> None:
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pass
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# 具体实现类
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class RedPaint(Paint):
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def use(self) -> str:
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return "红色颜料"
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class BluePaint(Paint):
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def use(self) -> str:
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return "蓝色颜料"
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class RoundBrush(Brush):
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def __init__(self, paint: Paint) -> None:
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super().__init__()
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self.paint = paint
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def draw(self) -> None:
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print("使用圆形笔刷和" + self.paint.use() + "进行绘图！")
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class SquareBrush(Brush):
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def __init__(self, paint: Paint) -> None:
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super().__init__()
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self.paint = paint
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def draw(self) -> None:
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print("使用方形笔刷和" + self.paint.use() + "进行绘图！")
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# 绘图函数
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def painting(brush: Brush) -> None:
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brush.draw()
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if __name__ == "__main__":
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print("============= 桥接模式 =============")
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red_paint = RedPaint()
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blue_paint = BluePaint()
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painting(RoundBrush(red_paint))
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painting(SquareBrush(red_paint))
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painting(RoundBrush(blue_paint))
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painting(SquareBrush(blue_paint))
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print("\n=========== 桥接模式结束 ===========")
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