การสืบทอด

การสืบทอด

การสืบทอดคืออะไร

ประโยชน์ของการสืบทอด

การกำหนดคลาสแม่

# Defines the Animal parent class
class Animal:
    def __init__(self, name):
        self.name = name  # Sets the name of the animal

    def speak(self):
        print(self.name + " makes a sound.")  # Generic speak method

การสร้างคลาสลูก

# Defines the Dog child class inheriting from Animal
class Dog(Animal):
    def speak(self):
        print(self.name + " says Woof!")  # Overrides the speak method

การใช้คลาสลูก

# Creates an object of the Dog class
my_dog = Dog("Buddy")

# Calls the speak method
my_dog.speak()  # Output: Buddy says Woof!

การสืบทอดหลายลำดับ

# Defines the Flyer parent class
class Flyer:
    def fly(self):
        print("I can fly!")

# Defines the Swimmer parent class
class Swimmer:
    def swim(self):
        print("I can swim!")

# Defines the Duck child class inheriting from both Flyer and Swimmer
class Duck(Flyer, Swimmer):
    def speak(self):
        print("Quack!")

การใช้การสืบทอดหลายลำดับ

# Creates an object of the Duck class
donald = Duck()

# Calls methods inherited from both parent classes
donald.fly()    # Output: I can fly!
donald.swim()   # Output: I can swim!

# Calls the speak method defined in the Duck class
donald.speak()  # Output: Quack!

# Defines the Vehicle parent class
class Vehicle:
    def __init__(self, brand):
        self.brand = brand  # Sets the brand of the vehicle

    def drive(self):
        print(self.brand + " is driving.")

# Defines the Car child class inheriting from Vehicle
class Car(Vehicle):
    def drive(self):
        print(self.brand + " is driving a car.")

# Creates an object of the Car class
my_car = Car("Toyota")

# Calls the drive method
my_car.drive()

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