用python写一个贪吃蛇小游戏

好的，下面是一个简单的贪吃蛇小游戏，使用 Python 语言编写。

import turtle
import random

# 设置窗口大小和背景颜色
window = turtle.Screen()
window.title("贪吃蛇小游戏")
window.bgcolor("lightgreen")
window.setup(width=600, height=600)

# 创建蛇的头部和身体
head = turtle.Turtle()
head.shape("square")
head.color("black")
head.penup()
head.goto(0, 0)
head.direction = "stop"

# 创建食物
food = turtle.Turtle()
food.shape("circle")
food.color("red")
food.penup()
food.goto(random.randint(-280, 280), random.randint(-280, 280))

# 创建边界
border = turtle.Turtle()
border.hideturtle()
border.penup()
border.goto(-290, -290)
border.pendown()
border.pensize(3)
for side in range(4):
    border.fd(580)
    border.lt(90)

# 定义移动函数
def move():
    if head.direction == "up":
        y = head.ycor()
        head.sety(y + 20)
    elif head.direction == "down":
        y = head.ycor()
        head.sety(y - 20)
    elif head.direction == "right":
        x = head.xcor()
        head.setx(x + 20)
    elif head.direction == "left":
        x = head.xcor()
        head.setx(x - 20)

# 定义移动方向函数
def go_up():
    if head.direction != "down":
        head.direction = "up"

def go_down():
    if head.direction != "up":
        head.direction = "down"

def go_right():
    if head.direction != "left":
        head.direction = "right"

def go_left():
    if head.direction != "right":
        head.direction = "left"

# 绑定键盘事件
window.listen()
window.onkeypress(go_up, "Up")
window.onkeypress(go_down, "Down")
window.onkeypress(go_right, "Right")
window.onkeypress(go_left, "Left")

# 循环游戏
while True:
    window.update()

    # 检测蛇头和食物之间的距离
    if head.distance(food) < 20:
        food.goto(random.randint(-280, 280), random.randint(-280, 280))

        # 创建蛇的身体
        body = turtle.Turtle()
        body.shape("square")
        body.color("grey")
        body.penup()
        body.goto(0, 0)

    # 移动蛇的身体
    for index in range(len(heads)-1, 0, -1):
        x = heads[index-1].xcor()
        y = heads[index-1].ycor()
        heads[index].goto(x, y)

    # 移动蛇的头部
    move()

    # 检测蛇头和边界之间的碰撞
    if head.xcor() > 280 or head.xcor() < -280 or head.ycor() > 280 or head.ycor() < -280:
        turtle.write("游戏结束", align="center", font=("Courier", 24, "bold"))
        break

    # 检测蛇头和身体之间的碰撞
    for body in heads[1:]:
        if head.distance(body) < 20:
            turtle.write("游戏结束", align="center", font=("Courier", 24, "bold"))
            break

    # 延迟
    turtle.delay(0.1)

turtle.done()

运行以上代码，可以看到一个基本的贪吃蛇小游戏窗口，通过上下左右键控制蛇的移动，蛇头碰到边界或身体则游戏结束。