class Vehicle: def __init__(self, speed, size): self.speed = speed self.size = size def move(self): print("Vehicle is moving") def setSpeed(self, speed): self.speed = speed def speedUp(self, amount=5): self.speed += amount print(f"Vehicle speed increased to {self.speed}") def speedDown(self, amount=5): self.speed -= amount print(f"Vehicle speed decreased to {self.speed}")的输出结果是什么

这段代码的输出结果是空的，因为它只是定义了一个名为 Vehicle 的类，但是没有实例化或者调用其中的方法。如果想要看到它的输出结果，需要在代码中创建 Vehicle 的实例并调用其中的方法，例如：

car = Vehicle(0, 'small')
car.move() # 输出：Vehicle is moving
car.speedUp() # 输出：Vehicle speed increased to 5
car.speedDown() # 输出：Vehicle speed decreased to 0