{"id":971292,"date":"2024-12-27T05:33:38","date_gmt":"2024-12-26T21:33:38","guid":{"rendered":""},"modified":"2024-12-27T05:33:40","modified_gmt":"2024-12-26T21:33:40","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e5%bc%95%e5%85%a5%e6%8e%a5%e5%8f%a3","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/971292.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u5f15\u5165\u63a5\u53e3"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u5f15\u5165\u63a5\u53e3\"<\/p>\n

\u5728Python\u4e2d\u5f15\u5165\u63a5\u53e3\u7684\u4e3b\u8981\u65b9\u6cd5\u662f\u4f7f\u7528\u62bd\u8c61\u57fa\u7c7b\uff08Abstract Base Classes, ABC\uff09\u3001\u901a\u8fc7\u6a21\u5757\u5316\u8bbe\u8ba1\u3001\u4f7f\u7528\u534f\u8bae\u548c\u5b9e\u73b0\u63a5\u53e3\u7684\u8bbe\u8ba1\u6a21\u5f0f\u3002<\/strong> \u5176\u4e2d\uff0c\u62bd\u8c61\u57fa\u7c7b\u662fPython\u4e2d\u5b9a\u4e49\u63a5\u53e3\u7684\u4e00\u79cd\u65b9\u5f0f\uff0c\u5141\u8bb8\u5b9a\u4e49\u65b9\u6cd5\u7684\u96c6\u5408\u800c\u4e0d\u63d0\u4f9b\u5177\u4f53\u5b9e\u73b0\u3002\u901a\u8fc7\u6a21\u5757\u5316\u8bbe\u8ba1\u53ef\u4ee5\u5b9e\u73b0\u63a5\u53e3\u7684\u5206\u79bb\uff0c\u4f7f\u4ee3\u7801\u66f4\u5177\u53ef\u7ef4\u62a4\u6027\u3002\u4f7f\u7528\u534f\u8bae\u53ef\u4ee5\u5b9e\u73b0\u7075\u6d3b\u7684\u63a5\u53e3\u5b9a\u4e49\uff0c\u800c\u8bbe\u8ba1\u6a21\u5f0f\u5219\u63d0\u4f9b\u4e86\u591a\u79cd\u5b9e\u73b0\u63a5\u53e3\u7684\u65b9\u5f0f\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u62bd\u8c61\u57fa\u7c7b\uff08ABC\uff09<\/p>\n<\/p>\n

\u62bd\u8c61\u57fa\u7c7b\u5728Python\u4e2d\u7528\u4e8e\u5b9a\u4e49\u63a5\u53e3\u7684\u6807\u51c6\u65b9\u5f0f\u3002\u901a\u8fc7\u5f15\u5165abc<\/code>\u6a21\u5757\uff0c\u53ef\u4ee5\u521b\u5efa\u4e0d\u80fd\u76f4\u63a5\u5b9e\u4f8b\u5316\u7684\u7c7b\uff0c\u8981\u6c42\u5b50\u7c7b\u5b9e\u73b0\u7279\u5b9a\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

    \n
  1. \n

    \u5b9a\u4e49\u62bd\u8c61\u57fa\u7c7b<\/strong><\/p>\n<\/p>\n

    \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7abc<\/code>\u6a21\u5757\u5b9a\u4e49\u62bd\u8c61\u57fa\u7c7b\u3002\u62bd\u8c61\u57fa\u7c7b\u5b9a\u4e49\u4e86\u63a5\u53e3\u7684\u57fa\u672c\u7ed3\u6784\u548c\u65b9\u6cd5\uff0c\u4f46\u4e0d\u63d0\u4f9b\u5177\u4f53\u5b9e\u73b0\u3002\u8981\u5b9a\u4e49\u4e00\u4e2a\u62bd\u8c61\u57fa\u7c7b\uff0c\u9700\u8981\u7ee7\u627f\u81eaABC<\/code>\u7c7b\uff0c\u5e76\u4f7f\u7528@abstractmethod<\/code>\u88c5\u9970\u5668\u6807\u8bb0\u62bd\u8c61\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

    from abc import ABC, abstractmethod<\/p>\n
    class Animal(ABC):<\/p>\n
        @abstractmethod<\/p>\n
        def speak(self):<\/p>\n
            pass<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0cAnimal<\/code>\u662f\u4e00\u4e2a\u62bd\u8c61\u57fa\u7c7b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5speak<\/code>\u3002\u4efb\u4f55\u7ee7\u627f\u81eaAnimal<\/code>\u7684\u5b50\u7c7b\u90fd\u5fc5\u987b\u5b9e\u73b0speak<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<\/li>\n
  2. \n
    \u5b9e\u73b0\u62bd\u8c61\u57fa\u7c7b<\/strong><\/p>\n<\/p>\n
    \u8981\u5b9e\u73b0\u62bd\u8c61\u57fa\u7c7b\uff0c\u5b50\u7c7b\u9700\u8981\u7ee7\u627f\u8be5\u57fa\u7c7b\u5e76\u5b9e\u73b0\u6240\u6709\u7684\u62bd\u8c61\u65b9\u6cd5\u3002\u5426\u5219\uff0c\u5b50\u7c7b\u4e5f\u5c06\u662f\u4e00\u4e2a\u62bd\u8c61\u7c7b\uff0c\u4e0d\u80fd\u88ab\u5b9e\u4f8b\u5316\u3002<\/p>\n<\/p>\n
    class Dog(Animal):<\/p>\n
        def speak(self):<\/p>\n
            return "Woof!"<\/p>\n
    class Cat(Animal):<\/p>\n
        def speak(self):<\/p>\n
            return "Meow!"<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cDog<\/code>\u548cCat<\/code>\u7c7b\u7ee7\u627f\u4e86Animal<\/code>\u7c7b\uff0c\u5e76\u5b9e\u73b0\u4e86speak<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<\/li>\n
  3. \n
    \u4f7f\u7528\u62bd\u8c61\u57fa\u7c7b\u7684\u597d\u5904<\/strong><\/p>\n<\/p>\n
    \u4f7f\u7528\u62bd\u8c61\u57fa\u7c7b\u53ef\u4ee5\u786e\u4fdd\u5b50\u7c7b\u63d0\u4f9b\u7279\u5b9a\u7684\u884c\u4e3a\uff0c\u540c\u65f6\u5141\u8bb8\u4e3a\u63a5\u53e3\u63d0\u4f9b\u9ed8\u8ba4\u5b9e\u73b0\u3002\u6b64\u5916\uff0c\u62bd\u8c61\u57fa\u7c7b\u63d0\u4f9b\u4e86\u4e00\u79cd\u68c0\u67e5\u7c7b\u578b\u7684\u673a\u5236\uff0c\u53ef\u4ee5\u7528\u6765\u786e\u4fdd\u5bf9\u8c61\u7b26\u5408\u7279\u5b9a\u63a5\u53e3\u3002<\/p>\n<\/p>\n
    def animal_sound(animal: Animal):<\/p>\n
        print(animal.speak())<\/p>\n
    dog = Dog()<\/p>\n
    cat = Cat()<\/p>\n
    animal_sound(dog)  # \u8f93\u51fa: Woof!<\/p>\n
    animal_sound(cat)  # \u8f93\u51fa: Meow!<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0canimal_sound<\/code>\u51fd\u6570\u63a5\u53d7\u4efb\u4f55\u5b9e\u73b0\u4e86Animal<\/code>\u63a5\u53e3\u7684\u5bf9\u8c61\uff0c\u5e76\u8c03\u7528\u5176speak<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
    \u4e8c\u3001\u901a\u8fc7\u6a21\u5757\u5316\u8bbe\u8ba1<\/p>\n<\/p>\n
    \u6a21\u5757\u5316\u8bbe\u8ba1\u662f\u53e6\u4e00\u79cd\u5b9e\u73b0\u63a5\u53e3\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u5c06\u63a5\u53e3\u5b9a\u4e49\u5728\u5355\u72ec\u7684\u6a21\u5757\u4e2d\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4ee3\u7801\u7684\u5206\u79bb\u548c\u590d\u7528\u3002<\/p>\n<\/p>\n
      \n
    1. \n
      \u5b9a\u4e49\u63a5\u53e3\u6a21\u5757<\/strong><\/p>\n<\/p>\n
      \u53ef\u4ee5\u5728\u4e00\u4e2a\u5355\u72ec\u7684\u6a21\u5757\u4e2d\u5b9a\u4e49\u63a5\u53e3\uff0c\u7136\u540e\u5728\u9700\u8981\u7684\u5730\u65b9\u8fdb\u884c\u5bfc\u5165\u3002\u8fd9\u6837\u53ef\u4ee5\u5b9e\u73b0\u63a5\u53e3\u7684\u5206\u79bb\u548c\u4ee3\u7801\u590d\u7528\u3002<\/p>\n<\/p>\n
      # interface.py<\/p>\n
      class AnimalInterface:<\/p>\n
          def speak(self):<\/p>\n
              rAI<\/a>se NotImplementedError("Subclasses should implement this!")<\/p>\n
      <\/code><\/pre>\n<\/p>\n<\/li>\n
    2. \n
      \u5b9e\u73b0\u63a5\u53e3<\/strong><\/p>\n<\/p>\n
      \u5728\u5176\u4ed6\u6a21\u5757\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u7ee7\u627f\u63a5\u53e3\u7c7b\u6765\u5b9e\u73b0\u63a5\u53e3\u3002<\/p>\n<\/p>\n
      # dog.py<\/p>\n
      from interface import AnimalInterface<\/p>\n
      class Dog(AnimalInterface):<\/p>\n
          def speak(self):<\/p>\n
              return "Woof!"<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      # cat.py<\/p>\n
      from interface import AnimalInterface<\/p>\n
      class Cat(AnimalInterface):<\/p>\n
          def speak(self):<\/p>\n
              return "Meow!"<\/p>\n
      <\/code><\/pre>\n<\/p>\n<\/li>\n
    3. \n
      \u6a21\u5757\u5316\u8bbe\u8ba1\u7684\u4f18\u52bf<\/strong><\/p>\n<\/p>\n
      \u6a21\u5757\u5316\u8bbe\u8ba1\u53ef\u4ee5\u5b9e\u73b0\u4ee3\u7801\u7684\u5206\u79bb\u548c\u590d\u7528\u3002\u901a\u8fc7\u5c06\u63a5\u53e3\u5b9a\u4e49\u5728\u5355\u72ec\u7684\u6a21\u5757\u4e2d\uff0c\u53ef\u4ee5\u5728\u591a\u4e2a\u5730\u65b9\u4f7f\u7528\u540c\u4e00\u4e2a\u63a5\u53e3\u5b9a\u4e49\u3002<\/p>\n<\/p>\n
      # main.py<\/p>\n
      from dog import Dog<\/p>\n
      from cat import Cat<\/p>\n
      def animal_sound(animal):<\/p>\n
          print(animal.speak())<\/p>\n
      dog = Dog()<\/p>\n
      cat = Cat()<\/p>\n
      animal_sound(dog)  # \u8f93\u51fa: Woof!<\/p>\n
      animal_sound(cat)  # \u8f93\u51fa: Meow!<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cDog<\/code>\u548cCat<\/code>\u7c7b\u90fd\u5b9e\u73b0\u4e86AnimalInterface<\/code>\u63a5\u53e3\uff0c\u5e76\u5728main.py<\/code>\u4e2d\u4f7f\u7528\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
      \u4e09\u3001\u4f7f\u7528\u534f\u8bae\uff08Protocols\uff09<\/p>\n<\/p>\n
      Python 3.8\u5f15\u5165\u4e86\u534f\u8bae\uff08Protocols\uff09\uff0c\u901a\u8fc7\u534f\u8bae\u53ef\u4ee5\u5b9a\u4e49\u7ed3\u6784\u5316\u7684\u63a5\u53e3\uff0c\u800c\u4e0d\u9700\u8981\u663e\u5f0f\u7684\u7ee7\u627f\u5173\u7cfb\u3002\u534f\u8bae\u662f\u4e00\u79cd\u7075\u6d3b\u7684\u63a5\u53e3\u5b9a\u4e49\u65b9\u5f0f\uff0c\u5141\u8bb8\u5728\u5b9a\u4e49\u63a5\u53e3\u65f6\u4e0d\u9700\u8981\u663e\u5f0f\u5730\u7ee7\u627f\u67d0\u4e2a\u7c7b\u3002<\/p>\n<\/p>\n
        \n
      1. \n
        \u5b9a\u4e49\u534f\u8bae<\/strong><\/p>\n<\/p>\n
        \u534f\u8bae\u662f\u4e00\u79cd\u63a5\u53e3\u5b9a\u4e49\u65b9\u5f0f\uff0c\u53ef\u4ee5\u901a\u8fc7typing<\/code>\u6a21\u5757\u4e2d\u7684Protocol<\/code>\u7c7b\u5b9a\u4e49\u3002\u534f\u8bae\u5b9a\u4e49\u4e86\u4e00\u7ec4\u65b9\u6cd5\u548c\u5c5e\u6027\uff0c\u4efb\u4f55\u5b9e\u73b0\u8fd9\u4e9b\u65b9\u6cd5\u548c\u5c5e\u6027\u7684\u7c7b\u90fd\u88ab\u8ba4\u4e3a\u7b26\u5408\u8be5\u534f\u8bae\u3002<\/p>\n<\/p>\n
        from typing import Protocol<\/p>\n
        class AnimalProtocol(Protocol):<\/p>\n
            def speak(self) -> str:<\/p>\n
                ...<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n
      2. \n
        \u5b9e\u73b0\u534f\u8bae<\/strong><\/p>\n<\/p>\n
        \u8981\u5b9e\u73b0\u534f\u8bae\uff0c\u53ea\u9700\u8981\u5b9a\u4e49\u7b26\u5408\u534f\u8bae\u65b9\u6cd5\u7b7e\u540d\u7684\u7c7b\uff0c\u800c\u4e0d\u9700\u8981\u663e\u5f0f\u5730\u7ee7\u627f\u534f\u8bae\u7c7b\u3002<\/p>\n<\/p>\n
        class Dog:<\/p>\n
            def speak(self) -> str:<\/p>\n
                return "Woof!"<\/p>\n
        class Cat:<\/p>\n
            def speak(self) -> str:<\/p>\n
                return "Meow!"<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n
      3. \n
        \u4f7f\u7528\u534f\u8bae<\/strong><\/p>\n<\/p>\n
        \u534f\u8bae\u53ef\u4ee5\u7528\u4e8e\u7c7b\u578b\u68c0\u67e5\u548c\u63a5\u53e3\u9a8c\u8bc1\uff0c\u786e\u4fdd\u5bf9\u8c61\u7b26\u5408\u7279\u5b9a\u534f\u8bae\u3002<\/p>\n<\/p>\n
        def animal_sound(animal: AnimalProtocol):<\/p>\n
            print(animal.speak())<\/p>\n
        dog = Dog()<\/p>\n
        cat = Cat()<\/p>\n
        animal_sound(dog)  # \u8f93\u51fa: Woof!<\/p>\n
        animal_sound(cat)  # \u8f93\u51fa: Meow!<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0canimal_sound<\/code>\u51fd\u6570\u63a5\u53d7\u4efb\u4f55\u7b26\u5408AnimalProtocol<\/code>\u534f\u8bae\u7684\u5bf9\u8c61\uff0c\u5e76\u8c03\u7528\u5176speak<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
        \u56db\u3001\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u63a5\u53e3\u5b9e\u73b0<\/p>\n<\/p>\n
        \u5728\u8f6f\u4ef6\u8bbe\u8ba1\u4e2d\uff0c\u8bbe\u8ba1\u6a21\u5f0f\u63d0\u4f9b\u4e86\u4e00\u79cd\u89e3\u51b3\u7279\u5b9a\u95ee\u9898\u7684\u901a\u7528\u65b9\u6848\u3002Python\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u8bbe\u8ba1\u6a21\u5f0f\u5b9e\u73b0\u63a5\u53e3\u3002<\/p>\n<\/p>\n
          \n
        1. \n
          \u9002\u914d\u5668\u6a21\u5f0f<\/strong><\/p>\n<\/p>\n
          \u9002\u914d\u5668\u6a21\u5f0f\u7528\u4e8e\u5c06\u4e00\u4e2a\u63a5\u53e3\u8f6c\u6362\u6210\u53e6\u4e00\u4e2a\u63a5\u53e3\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b9\u6cd5\uff0c\u4f7f\u63a5\u53e3\u4e0d\u517c\u5bb9\u7684\u7c7b\u80fd\u591f\u534f\u540c\u5de5\u4f5c\u3002<\/p>\n<\/p>\n
          class Dog:<\/p>\n
              def bark(self) -> str:<\/p>\n
                  return "Woof!"<\/p>\n
          class DogAdapter:<\/p>\n
              def __init__(self, dog: Dog):<\/p>\n
                  self._dog = dog<\/p>\n
              def speak(self) -> str:<\/p>\n
                  return self._dog.bark()<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cDogAdapter<\/code>\u7c7b\u5c06Dog<\/code>\u7c7b\u7684bark<\/code>\u65b9\u6cd5\u9002\u914d\u4e3aspeak<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<\/li>\n
        2. \n
          \u88c5\u9970\u5668\u6a21\u5f0f<\/strong><\/p>\n<\/p>\n
          \u88c5\u9970\u5668\u6a21\u5f0f\u7528\u4e8e\u52a8\u6001\u5730\u7ed9\u5bf9\u8c61\u589e\u52a0\u884c\u4e3a\uff0c\u800c\u4e0d\u4f1a\u5f71\u54cd\u5176\u4ed6\u5bf9\u8c61\u3002\u5b83\u662f\u4e00\u79cd\u7075\u6d3b\u7684\u63a5\u53e3\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n<\/p>\n
          class AnimalDecorator:<\/p>\n
              def __init__(self, animal):<\/p>\n
                  self._animal = animal<\/p>\n
              def speak(self):<\/p>\n
                  return self._animal.speak() + " (decorated)"<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cAnimalDecorator<\/code>\u7c7b\u4e3a\u5b9e\u73b0\u63a5\u53e3\u7684\u5bf9\u8c61\u589e\u52a0\u4e86\u65b0\u7684\u884c\u4e3a\u3002<\/p>\n<\/p>\n<\/li>\n
        3. \n
          \u7b56\u7565\u6a21\u5f0f<\/strong><\/p>\n<\/p>\n
          \u7b56\u7565\u6a21\u5f0f\u7528\u4e8e\u5b9a\u4e49\u4e00\u7cfb\u5217\u7b97\u6cd5\uff0c\u5e76\u5c06\u6bcf\u4e2a\u7b97\u6cd5\u5c01\u88c5\u8d77\u6765\uff0c\u4f7f\u5b83\u4eec\u53ef\u4ee5\u4e92\u6362\u4f7f\u7528\u3002\u7b56\u7565\u6a21\u5f0f\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u591a\u6001\u63a5\u53e3\u3002<\/p>\n<\/p>\n
          class SpeakStrategy:<\/p>\n
              def speak(self):<\/p>\n
                  pass<\/p>\n
          class DogSpeak(SpeakStrategy):<\/p>\n
              def speak(self):<\/p>\n
                  return "Woof!"<\/p>\n
          class CatSpeak(SpeakStrategy):<\/p>\n
              def speak(self):<\/p>\n
                  return "Meow!"<\/p>\n
          class AnimalContext:<\/p>\n
              def __init__(self, strategy: SpeakStrategy):<\/p>\n
                  self._strategy = strategy<\/p>\n
              def perform_speak(self):<\/p>\n
                  return self._strategy.speak()<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cAnimalContext<\/code>\u7c7b\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684SpeakStrategy<\/code>\u5b9e\u73b0\u591a\u6001\u63a5\u53e3\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
          \u4e94\u3001\u603b\u7ed3<\/p>\n<\/p>\n
          \u5728Python\u4e2d\u5f15\u5165\u63a5\u53e3\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u5305\u62ec\u4f7f\u7528\u62bd\u8c61\u57fa\u7c7b\u3001\u6a21\u5757\u5316\u8bbe\u8ba1\u3001\u534f\u8bae\u4ee5\u53ca\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u63a5\u53e3\u5b9e\u73b0\u3002\u8fd9\u4e9b\u65b9\u6cd5\u5404\u6709\u4f18\u7f3a\u70b9\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u3002\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u6269\u5c55\u6027\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u52a0\u7075\u6d3b\u7684\u63a5\u53e3\u8bbe\u8ba1\u3002<\/p>\n<\/p>\n
          \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
           \u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528\u63a5\u53e3\uff1f<\/strong>
          \u5728Python\u4e2d\uff0c\u63a5\u53e3\u901a\u5e38\u662f\u901a\u8fc7\u62bd\u8c61\u57fa\u7c7b\uff08Abstract Base Classes, ABC\uff09\u6765\u5b9e\u73b0\u7684\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528abc<\/code>\u6a21\u5757\u6765\u521b\u5efa\u63a5\u53e3\u3002\u5b9a\u4e49\u4e00\u4e2a\u63a5\u53e3\u65f6\uff0c\u60a8\u53ef\u4ee5\u7ee7\u627fABC<\/code>\u7c7b\uff0c\u5e76\u4f7f\u7528@abstractmethod<\/code>\u88c5\u9970\u5668\u6765\u58f0\u660e\u9700\u8981\u5b9e\u73b0\u7684\u65b9\u6cd5\u3002\u8fd9\u6837\u505a\u80fd\u591f\u786e\u4fdd\u4efb\u4f55\u5b9e\u73b0\u8be5\u63a5\u53e3\u7684\u7c7b\u90fd\u5fc5\u987b\u63d0\u4f9b\u8fd9\u4e9b\u65b9\u6cd5\u7684\u5177\u4f53\u5b9e\u73b0\u3002<\/p>\n
          Python\u63a5\u53e3\u548c\u7c7b\u4e4b\u95f4\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/strong>
          \u63a5\u53e3\u4e3b\u8981\u7528\u4e8e\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u5e94\u8be5\u9075\u5faa\u7684\u534f\u8bae\uff0c\u800c\u4e0d\u63d0\u4f9b\u5177\u4f53\u7684\u5b9e\u73b0\u3002\u7c7b\u5219\u53ef\u4ee5\u5305\u542b\u5177\u4f53\u7684\u5b9e\u73b0\u903b\u8f91\u3002\u901a\u8fc7\u63a5\u53e3\uff0c\u60a8\u53ef\u4ee5\u786e\u4fdd\u4e0d\u540c\u7684\u7c7b\u9075\u5faa\u76f8\u540c\u7684\u7ed3\u6784\uff0c\u4ece\u800c\u5b9e\u73b0\u591a\u6001\u6027\u3002\u4f7f\u7528\u63a5\u53e3\u53ef\u4ee5\u589e\u5f3a\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002<\/p>\n
          \u5728Python\u4e2d\u5982\u4f55\u68c0\u67e5\u4e00\u4e2a\u7c7b\u662f\u5426\u5b9e\u73b0\u4e86\u7279\u5b9a\u63a5\u53e3\uff1f<\/strong>
          \u53ef\u4ee5\u4f7f\u7528isinstance()<\/code>\u51fd\u6570\u6765\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u662f\u67d0\u4e2a\u7c7b\u6216\u63a5\u53e3\u7684\u5b9e\u4f8b\u3002\u5982\u679c\u60a8\u4f7f\u7528\u4e86\u62bd\u8c61\u57fa\u7c7b\uff0c\u53ef\u4ee5\u76f4\u63a5\u68c0\u67e5\u8be5\u5bf9\u8c61\u662f\u5426\u662f\u67d0\u4e2a\u62bd\u8c61\u57fa\u7c7b\u7684\u5b50\u7c7b\u6216\u5b9e\u73b0\u7c7b\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u5728\u8fd0\u884c\u65f6\uff0c\u60a8\u7684\u5bf9\u8c61\u786e\u5b9e\u5b9e\u73b0\u4e86\u6240\u9700\u7684\u63a5\u53e3\u3002<\/p>\n
          \u53ef\u4ee5\u7ed9\u51fa\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u5728Python\u4e2d\u5b9a\u4e49\u548c\u5b9e\u73b0\u63a5\u53e3\u5417\uff1f<\/strong>
          \u5f53\u7136\u53ef\u4ee5\uff01\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n
          from abc import ABC, abstractmethod\n\nclass Animal(ABC):\n    @abstractmethod\n    def sound(self):\n        pass\n\nclass Dog(Animal):\n    def sound(self):\n        return "Woof!"\n\nclass Cat(Animal):\n    def sound(self):\n        return "Meow!"\n\n# \u6d4b\u8bd5\u5b9e\u73b0\ndog = Dog()\ncat = Cat()\nprint(dog.sound())  # \u8f93\u51fa: Woof!\nprint(cat.sound())  # \u8f93\u51fa: Meow!\n<\/code><\/pre>\n
          \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cAnimal<\/code>\u662f\u4e00\u4e2a\u63a5\u53e3\uff0cDog<\/code>\u548cCat<\/code>\u662f\u5b9e\u73b0\u4e86\u8be5\u63a5\u53e3\u7684\u7c7b\u3002\u6bcf\u4e2a\u5b9e\u73b0\u7c7b\u90fd\u63d0\u4f9b\u4e86sound<\/code>\u65b9\u6cd5\u7684\u5177\u4f53\u5b9e\u73b0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5f15\u5165\u63a5\u53e3\u7684\u4e3b\u8981\u65b9\u6cd5\u662f\u4f7f\u7528\u62bd\u8c61\u57fa\u7c7b\uff08Abstract Base Classes, ABC\uff09\u3001\u901a\u8fc7 […]","protected":false},"author":3,"featured_media":971297,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/971292"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=971292"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/971292\/revisions"}],"predecessor-version":[{"id":971300,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/971292\/revisions\/971300"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/971297"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=971292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=971292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=971292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}