重构享元模式示例，统一服装接口类型，增强代码一致性和可读性

python/flyweight/main.py

@@ -3,8 +3,15 @@
 汤宝宝开了一家服装租赁店，好多客人来店里租衣服~
 """
 
+from abc import ABC, abstractmethod
 
-class Clothing:
+# 享元接口
+class ClothingInterface(ABC):
+    @abstractmethod
+    def show(self):
+        pass
+
+class Clothing(ClothingInterface):
     """享元对象 - 服装"""
 
     style: str
@@ -23,12 +30,12 @@ class Clothing:
 class ClothingFactory:
     """享元工厂 - 服装店"""
 
-    _clothing_pool: dict[str, Clothing]
+    _clothing_pool: dict[str, ClothingInterface]
 
     def __init__(self):
         self._clothing_pool = {}
 
-    def get_clothing(self, style: str, size: str, color: str) -> Clothing:
+    def get_clothing(self, style: str, size: str, color: str) -> ClothingInterface:
         key = f"{style}-{size}-{color}"
         if key not in self._clothing_pool:
             self._clothing_pool[key] = Clothing(style, size, color)
@@ -43,13 +50,13 @@ class ClothingFactory:
 
 class Customer:
     name: str
-    clothing: list[Clothing]
+    clothing: list[ClothingInterface]
 
     def __init__(self, name: str):
         self.name = name
         self.clothing = []
 
-    def rent_clothing(self, clothing: Clothing):
+    def rent_clothing(self, clothing: ClothingInterface):
         self.clothing.append(clothing)
         print(f"{self.name} 租了一件服装: ", end="")
         clothing.show()