以下是使用Python语言结合 turtle 库实现的一个简单贪吃蛇游戏代码示例，仅供参考：

python

import turtle

import time

import random

# 设置游戏窗口

win = turtle.Screen()

win.title("贪吃蛇游戏")

win.bgcolor("black")

win.setup(width=600, height=600)

win.tracer(0) # 关闭自动更新画面

# 蛇头

head = turtle.Turtle()

head.speed(0)

head.shape("square")

head.color("white")

head.penup()

head.goto(0, 0)

head.direction = "stop"

# 食物

food = turtle.Turtle()

food.speed(0)

food.shape("circle")

food.color("red")

food.penup()

food.goto(0, 100)

segments = [] # 蛇身片段列表

# 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 == "left":

x = head.xcor()

head.setx(x - 20)

elif head.direction == "right":

x = head.xcor()

head.setx(x + 20)

# 定义方向控制函数

def go_up():

if head.direction!= "down":

head.direction = "up"

def go_down():

if head.direction!= "up":

head.direction = "down"

def go_left():

if head.direction!= "right":

head.direction = "left"

def go_right():

if head.direction!= "left":

head.direction = "right"

# 键盘绑定

win.listen()

win.onkeypress(go_up, "Up")

win.onkeypress(go_down, "Down")

win.onkeypress(go_left, "Left")

win.onkeypress(go_right, "Right")

while True:

win.update() # 更新画面

# 检测与边界碰撞

if head.xcor() > 290 or head.xcor() < -290 or head.ycor() > 290 or head.ycor() < -290:

time.sleep(1)

head.goto(0, 0)

head.direction = "stop"

for segment in segments:

segment.goto(1000, 1000) # 移到屏幕外

segments.clear()

# 检测与食物碰撞

if head.distance(food) < 20:

# 移动食物到随机位置

x = random.randint(-280, 280)

y = random.randint(-280, 280)

food.goto(x, y)

# 添加蛇身片段

new_segment = turtle.Turtle()

new_segment.speed(0)

new_segment.shape("square")

new_segment.color("grey")

new_segment.penup()

segments.append(new_segment)

# 移动蛇身

for index in range(len(segments) - 1, 0, -1):

x = segments[index - 1].xcor()

y = segments[index - 1].ycor()

segments[index].goto(x, y)

if len(segments) > 0:

x = head.xcor()

y = head.ycor()

segments[0].goto(x, y)

move()

time.sleep(0.1)

win.mainloop()

这段代码创建了一个简单的贪吃蛇游戏界面，通过键盘控制蛇头移动，吃到食物会增长蛇身，碰到边界游戏重新开始等基本功能。你可以根据需求进一步扩展和完善它，比如增加计分功能等。如果使用其他编程语言实现，思路类似但具体代码语法会有所不同。