📅  最后修改于: 2022-03-11 15:00:14.434000             🧑  作者: Mango
class Car(object):
def __init__(self, model, passengers, color, speed):
self.model = model
self.passengers = passengers
self.color = color
self.speed = speed
def accelerate(self):
self.speed = self.speed + 2
print (self.speed)
bmw = Car("BMW", 4, "red", 5)
ferrari = Car("Ferrari", 2, "black", 10)
ford = Car("Ford", 6, "blue", 6)
bmw.accelerate()
print (bmw.color)
ferrari.accelerate()
print (ferrari.color)
ferrari.accelerate() #note that the speed has been updated from the previous accelerate call
print (ford.passengers)
ford.accelerate()