简单的答案是更改此：

while True:

wn.update()

改为：

while True:

car.forward(1)

wn.update()

你会发现你的车盼着移动，需要你来引导它留在赛道上。 更为复杂的答案是， while True:在像Turtle这样的事件驱动环境中没有业务， while True:您需要的是计时器事件：

from turtle import Screen, Turtle, mainloop

# Move car

def turn_right():

car.right(20)

def turn_left():

car.left(20)

def move():

car.forward(1)

screen.update()

screen.ontimer(move, 25)

# Screen

screen = Screen()

screen.title('Car')

screen.bgcolor('black')

screen.setup(width=1200, height=1200)

screen.tracer(0)

# Track

track = Turtle()

track.hideturtle()

track.color('white')

track.penup()

track.goto(-550, 0)

track.pendown()

track.goto(-550, 300)

track.goto(-100, 370)

track.goto(100, 210)

track.goto(300, 380)

track.goto(580, 100)

track.goto(570, -300)

track.goto(300, -370)

track.goto(0, -250)

track.goto(-300, -200)

track.goto(-570, -250)

track.goto(-550, 0)

track.penup()

track.goto(-450, 0)

track.pendown()

track.goto(-450, 230)

track.goto(-150, 250)

track.goto(100, 100)

track.goto(300, 200)

track.goto(460, 100)

track.goto(450, -220)

track.goto(300, -250)

track.goto(0, -130)

track.goto(-300, -100)

track.goto(-450, 0)

# Start line

line = Turtle()

line.hideturtle()

line.color('white')

line.penup()

line.setx(-550)

line.pendown()

line.setx(-450)

# Car

car = Turtle()

car.shape('square')

car.shapesize(stretch_wid=1, stretch_len=2)

car.color('red')

car.setheading(90)

car.penup()

car.setx(-500)

# Key Bindings

screen.onkey(turn_right, 'd')

screen.onkey(turn_left, 'a')

screen.listen()

move()

mainloop()