更新生成者模式示例，添加木屋和砖房建造者实现，重构相关代码并增强可读性

python/builder/main.py

@@ -0,0 +1,121 @@
+"""
+实例
+汤宝宝想要建造一栋属于自己的房子，于是找来了著名的建筑设计
+公司——生成者模式公司（Builder Pattern Inc.）帮忙设计和建造房子。
+"""
+
+from abc import ABC, abstractmethod
+
+
+# 产品： 房子
+class House(ABC):
+    foundation: str
+    structure: str
+    roof: str
+
+
+# 抽象建造者： 房屋建造者
+class HouseBuilder(ABC):
+    @abstractmethod
+    def buildFoundation(self) -> None:
+        pass
+
+    @abstractmethod
+    def buildStructure(self) -> None:
+        pass
+
+    @abstractmethod
+    def buildRoof(self) -> None:
+        pass
+
+    @abstractmethod
+    def getHouse(self) -> House:
+        pass
+
+
+# 具体建造者： 木屋建造者
+class WoodenHouseBuilder(HouseBuilder):
+    def __init__(self):
+        self.house = House()
+
+    def buildFoundation(self) -> None:
+        self.house.foundation = "木桩地基"
+        print("  建造木桩地基")
+
+    def buildStructure(self) -> None:
+        self.house.structure = "木结构"
+        print("  建造木结构")
+
+    def buildRoof(self) -> None:
+        self.house.roof = "木屋顶"
+        print("  建造木屋顶")
+
+    def getHouse(self) -> House:
+        return self.house
+
+
+# 具体建造者： 砖房建造者
+class BrickHouseBuilder(HouseBuilder):
+    def __init__(self):
+        self.house = House()
+
+    def buildFoundation(self) -> None:
+        self.house.foundation = "混凝土地基"
+        print("  建造混凝土地基")
+
+    def buildStructure(self) -> None:
+        self.house.structure = "砖结构"
+        print("  建造砖结构")
+
+    def buildRoof(self) -> None:
+        self.house.roof = "瓦屋顶"
+        print("  建造瓦屋顶")
+
+    def getHouse(self) -> House:
+        return self.house
+
+
+# 指挥者
+class Director:
+    builder: HouseBuilder
+    house: House
+
+    def reset(self) -> None:
+        if hasattr(self, "house"):
+            del self.house
+
+    def setBuilder(self, builder: HouseBuilder) -> None:
+        self.builder = builder
+
+    def constructHouse(self):
+        self.reset()
+        self.builder.buildFoundation()
+        self.builder.buildStructure()
+        self.builder.buildRoof()
+        self.house = self.builder.getHouse()
+
+
+def main():
+    print("======== 生成者模式 ========")
+
+    director = Director()
+
+    print("建造木屋:")
+    builder = WoodenHouseBuilder()
+    director.setBuilder(builder)
+    director.constructHouse()
+    house = director.house
+    print(f"木屋建造完成: {house.foundation}, {house.structure}, {house.roof}\n")
+
+    print("建造砖房:")
+    builder = BrickHouseBuilder()
+    director.setBuilder(builder)
+    director.constructHouse()
+    house = director.house
+    print(f"砖房建造完成: {house.foundation}, {house.structure}, {house.roof}\n")
+
+    print("====== 生成者模式结束 ======")
+
+
+if __name__ == "__main__":
+    main()