python turtle 用stamp()实现贪吃蛇的程序

好的，我可以回答这个问题。你可以参考以下代码实现：

import turtle
import random

# set up the screen
window = turtle.Screen()
window.title("Snake Game")
window.bgcolor("white")
window.setup(width=600, height=600)

# create the snake
snake = []
for i in range(3):
    square = turtle.Turtle()
    square.shape("square")
    square.color("black")
    square.penup()
    square.goto(i*-20, 0)
    snake.append(square)

# create the food
food = turtle.Turtle()
food.shape("circle")
food.color("red")
food.penup()
food.goto(random.randint(-290, 290), random.randint(-290, 290))

# set up the movement
direction = "stop"
def up():
    global direction
    direction = "up"

def down():
    global direction
    direction = "down"

def left():
    global direction
    direction = "left"

def right():
    global direction
    direction = "right"

window.listen()
window.onkeypress(up, "w")
window.onkeypress(down, "s")
window.onkeypress(left, "a")
window.onkeypress(right, "d")

# set up the game loop
while True:
    window.update()

    # move the snake
    for i in range(len(snake)-1, 0, -1):
        x = snake[i-1].xcor()
        y = snake[i-1].ycor()
        snake[i].goto(x, y)
    if len(snake) > 0:
        x = snake[0].xcor()
        y = snake[0].ycor()
        if direction == "up":
            snake[0].sety(y + 20)
        elif direction == "down":
            snake[0].sety(y - 20)
        elif direction == "left":
            snake[0].setx(x - 20)
        elif direction == "right":
            snake[0].setx(x + 20)

    # check for collision with food
    if snake[0].distance(food) < 20:
        food.goto(random.randint(-290, 290), random.randint(-290, 290))
        square = turtle.Turtle()
        square.shape("square")
        square.color("black")
        square.penup()
        snake.append(square)

    # check for collision with walls
    if snake[0].xcor() < -290 or snake[0].xcor() > 290 or snake[0].ycor() < -290 or snake[0].ycor() > 290:
        break

    # check for collision with body
    for square in snake[1:]:
        if snake[0].distance(square) < 10:
            break

    # use stamp() to display the snake
    for i, square in enumerate(snake):
        square.clearstamps()
        square.setpos(i*-20, 0)
        square.stamp()

# game over
game_over = turtle.Turtle()
game_over.hideturtle()
game_over.color("red")
game_over.write("Game Over", align="center", font=("Arial", 24, "bold"))

这个程序使用turtle模块实现了贪吃蛇游戏，其中使用了stamp()方法来在屏幕上显示蛇的身体。注意，这只是一个简单的实现，你可以根据自己的需要进行修改和扩展。