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                >[success] # 像 java 一樣創建一個python 接口 ~~~ 1.使用from abc import ABCMeta, abstractmethod 2.py是動態語言所以接口這么直接略過不做詳細了解了 ~~~ >[danger] ##### 定義案例 ~~~ from abc import ABCMeta, abstractmethod class IStream(metaclass=ABCMeta): @abstractmethod def read(self, maxbytes=-1): pass @abstractmethod def write(self, data): pass ~~~ * 抽象類的一個特點是它不能直接被實例化 ~~~ a = IStream() # TypeError: Can't instantiate abstract class # IStream with abstract methods read, write ~~~ * 抽象類的使用通過集成 ~~~ class SocketStream(IStream): def read(self, maxbytes=-1): pass def write(self, data): pass ~~~
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