潇洒郎：Python实现抽象类

Python实现抽象类

# coding=utf-8
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from abc import ABC, abstractmethod
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class People(ABC):
    @abstractmethod
    def walk(self):
        raise Exception
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    @abstractmethod
    def eat(self):
        raise Exception
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    def dance(self):
        print('People can dance')
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# p = People() # TypeError: Can't instantiate abstract class People with abstract methods eat, walk
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class Student(People):
    '''
        没有实现eat方法： TypeError: Can't instantiate abstract class Student with abstract method eat
    '''
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    def walk(self):
        print("I am a student and I can walk")
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    def eat(self):
        print("I am a student and I can eat")
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s = Student()
s.walk()
s.dance()
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