更新

Python-100-Days/Day01-15/Day09/pet.py

@@ -0,0 +1,33 @@
+from abc import ABCMeta, abstractmethod
+
+
+class Pet(object, metaclass=ABCMeta):
+
+    def __init__(self, nickname):
+        self._nickname = nickname
+
+    @abstractmethod
+    def make_voice(self):
+        pass
+
+
+class Dog(Pet):
+
+    def make_voice(self):
+        print('%s: 汪汪汪...' % self._nickname)
+
+
+class Cat(Pet):
+
+    def make_voice(self):
+        print('%s: 喵...喵...' % self._nickname)
+
+
+def main():
+    pets = [Dog('旺财'), Cat('凯蒂'), Dog('大黄')]
+    for pet in pets:
+        pet.make_voice()
+
+
+if __name__ == '__main__':
+    main()