使用Python自带模块编写一个贪吃蛇程序

好的，下面是一个简单的贪吃蛇程序，使用Python自带的turtle模块实现。

import turtle
import time
import random

delay = 0.1

# 设置窗口大小
win = turtle.Screen()
win.title("贪吃蛇")
win.setup(width=600, height=600)
win.bgcolor("black")
win.tracer(0)

# 创建蛇头
head = turtle.Turtle()
head.speed(0)
head.shape("square")
head.color("white")
head.penup()
head.goto(0, 0)
head.direction = "stop"

# 创建食物
food = turtle.Turtle()
food.speed(0)
food.shape("circle")
food.color("red")
food.penup()
food.goto(0, 100)

# 蛇身列表
segments = []

# 分数
score = 0
high_score = 0

# 显示分数
pen = turtle.Turtle()
pen.speed(0)
pen.color("white")
pen.penup()
pen.hideturtle()
pen.goto(0, 260)
pen.write("Score: 0  High Score: 0", align="center", font=("Courier", 24, "normal"))

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

# 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_right():
    if head.direction != "left":
        head.direction = "right"

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

# 键盘绑定
win.listen()
win.onkeypress(go_up, "Up")
win.onkeypress(go_down, "Down")
win.onkeypress(go_right, "Right")
win.onkeypress(go_left, "Left")

# 循环
while True:
    win.update()

    # 碰到边界
    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"

        # 隐藏蛇身
        for segment in segments:
            segment.goto(1000, 1000)

        # 清空蛇身列表
        segments.clear()

        # 分数归零
        score = 0

        # 更新分数
        pen.clear()
        pen.write("Score: {}  High Score: {}".format(score, high_score), align="center", font=("Courier", 24, "normal"))

    # 碰到食物
    if head.distance(food) < 20:
        x = random.randint(-290, 290)
        y = random.randint(-290, 290)
        food.goto(x, y)

        # 添加蛇身
        new_segment = turtle.Turtle()
        new_segment.speed(0)
        new_segment.shape("square")
        new_segment.color("grey")
        new_segment.penup()
        segments.append(new_segment)

        # 增加分数
        score += 10

        if score > high_score:
            high_score = score

        # 更新分数
        pen.clear()
        pen.write("Score: {}  High Score: {}".format(score, high_score), align="center", font=("Courier", 24, "normal"))

    # 移动蛇身
    for i in range(len(segments) - 1, 0, -1):
        x = segments[i-1].xcor()
        y = segments[i-1].ycor()
        segments[i].goto(x, y)

    if len(segments) > 0:
        x = head.xcor()
        y = head.ycor()
        segments[0].goto(x, y)

    move()

    # 碰到自己
    for segment in segments:
        if segment.distance(head) < 20:
            time.sleep(1)
            head.goto(0, 0)
            head.direction = "stop"

            # 隐藏蛇身
            for segment in segments:
                segment.goto(1000, 1000)

            # 清空蛇身列表
            segments.clear()

            # 分数归零
            score = 0

            # 更新分数
            pen.clear()
            pen.write("Score: {}  High Score: {}".format(score, high_score), align="center", font=("Courier", 24, "normal"))

    time.sleep(delay)

win.mainloop()

这个程序使用turtle模块绘制贪吃蛇和食物，通过键盘绑定控制蛇的方向，实现了基本的贪吃蛇游戏功能。