Python 如何让一只海龟并排跟随另一只海龟？

我只是想在海龟图形中做一些非常简单的东西，但是我很难弄清楚如何让一只海龟和另一只海龟靠在一起，当那只海龟被人用键盘控制时

我试过查这个，但找不到任何答案。 '''

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我试图让一只乌龟和另一只乌龟呆在一起，而那只乌龟被一个人控制。

根据你最终要做的事情，答案可能很简单：

 bob_laser.goto(bob.position())

无论何时移动海龟

bob

。下面是使用此方法对代码进行的返工：

from turtle import Screen, Turtle

def turtle_start(color, x_coordinate):
    turtle = Turtle()
    turtle.hideturtle()
    turtle.shape('square')
    turtle.shapesize(2)
    turtle.speed('fastest')
    turtle.setheading(90)
    turtle.penup()

    turtle.color(color)
    turtle.setx(x_coordinate)
    turtle.showturtle()

    return turtle

def fred_up():
    fred.forward(4)

def fred_down():
    fred.backward(4)

def bob_up():
    screen.onkeypress(None, 'Up')  # disable complex handler inside handler
    bob.forward(4)
    bob_laser.goto(bob.position())
    screen.onkeypress(bob_up, 'Up')  # reenable handler

def bob_down():
    screen.onkeypress(None, 'Down')
    bob.backward(4)
    bob_laser.goto(bob.position())
    screen.onkeypress(bob_down, 'Down')

screen = Screen()
screen.setup(1200, 600)
screen.bgcolor('black')

# Fred
fred = turtle_start('red', -500)

# Bob
bob = turtle_start('blue', 500)

# Bob Laser
bob_laser = Turtle()
bob_laser.shape('square')
bob_laser.shapesize(stretch_len=5, stretch_wid=0.5)
bob_laser.color('yellow')
bob_laser.penup()

# Key Bindings
screen.onkeypress(fred_up, 'w')
screen.onkeypress(fred_down, 's')
screen.onkeypress(bob_up, 'Up')
screen.onkeypress(bob_down, 'Down')
screen.listen()

screen.exitonclick()

from turtle import Screen, Turtle

def turtle_start(color, x_coordinate):
    turtle = Turtle()
    turtle.hideturtle()
    turtle.shape('square')
    turtle.shapesize(2)
    turtle.speed('fastest')
    turtle.setheading(90)
    turtle.penup()

    turtle.color(color)
    turtle.setx(x_coordinate)
    turtle.showturtle()

    return turtle

def fred_up():
    fred.forward(4)

def fred_down():
    fred.backward(4)

def bob_up():
    screen.onkeypress(None, 'Up')  # disable complex handler inside handler
    bob.forward(4)
    bob_laser.goto(bob.position())
    screen.onkeypress(bob_up, 'Up')  # reenable handler

def bob_down():
    screen.onkeypress(None, 'Down')
    bob.backward(4)
    bob_laser.goto(bob.position())
    screen.onkeypress(bob_down, 'Down')

screen = Screen()
screen.setup(1200, 600)
screen.bgcolor('black')

# Fred
fred = turtle_start('red', -500)

# Bob
bob = turtle_start('blue', 500)

# Bob Laser
bob_laser = Turtle()
bob_laser.shape('square')
bob_laser.shapesize(stretch_len=5, stretch_wid=0.5)
bob_laser.color('yellow')
bob_laser.penup()

# Key Bindings
screen.onkeypress(fred_up, 'w')
screen.onkeypress(fred_down, 's')
screen.onkeypress(bob_up, 'Up')
screen.onkeypress(bob_down, 'Down')
screen.listen()

screen.exitonclick()