상속 소개

상위 클래스 정의하기

# Defining a superclass
class Animal:
    def speak(self):
        print("Animal speaks")

하위 클래스 만들기

# Defining a subclass
class Dog(Animal):
    def speak(self):
        print("Dog barks")

메서드 재정의

# Overriding methods in a subclass
class Dog(Animal):
    def speak(self):
        print("Dog barks")

animal = Animal()
animal.speak()  # Outputs: Animal speaks

dog = Dog()
dog.speak()  # Outputs: Dog barks

super() 함수 사용하기

# Using super() to call superclass methods
class Dog(Animal):
    def speak(self):
        super().speak()
        print("Dog barks")

다중 상속

# Example of multiple inheritance
class Flyer:
    def fly(self):
        print("Flying")

class Swimmer:
    def swim(self):
        print("Swimming")

class Duck(Flyer, Swimmer):
    pass

클래스 relationships 확인하기

# Checking class relationships
# Checking if an object is an instance of a class
print(isinstance(Dog(), Dog))  # Outputs: True

# Checking if a class is a subclass of another
print(issubclass(Dog, Animal))  # Outputs: True

상속에서 흔히 하는 실수

무엇을 배웠나요?