用python编写一个贪吃蛇

好的，这是一个简单的 Python 贪吃蛇游戏，可以用 Pygame 模块实现：

import pygame
import time
import random

pygame.init()

# 定义颜色
white = (255, 255, 255)
black = (0, 0, 0)
red = (213, 50, 80)
green = (0, 255, 0)
blue = (50, 153, 213)

# 定义屏幕大小和蛇身单元格大小
dis_width = 800
dis_height = 600
snake_block = 10

# 创建屏幕
dis = pygame.display.set_mode((dis_width, dis_height))
pygame.display.set_caption('Snake game by CSDN')

# 创建时钟对象
clock = pygame.time.Clock()

# 定义字体
font_style = pygame.font.SysFont(None, 50)


# 绘制蛇
def snake(snake_block, snake_List):
    for x in snake_List:
        pygame.draw.rect(dis, green, [x[0], x[1], snake_block, snake_block])


# 显示消息
def message(msg, color):
    mesg = font_style.render(msg, True, color)
    dis.blit(mesg, [dis_width / 6, dis_height / 3])


# 游戏循环
def gameLoop():
    game_over = False
    game_close = False

    # 初始蛇头和长度
    x1 = dis_width / 2
    y1 = dis_height / 2
    snake_List = []
    Length_of_snake = 1

    # 随机生成食物位置
    foodx = round(random.randrange(0, dis_width - snake_block) / 10.0) * 10.0
    foody = round(random.randrange(0, dis_height - snake_block) / 10.0) * 10.0

    # 游戏循环
    while not game_over:

        # 游戏结束处理
        while game_close == True:
            dis.fill(blue)
            message("You lost! Press Q-Quit or C-Play Again", red)
            pygame.display.update()

            # 当用户按下 Q 或者 C 键的时候
            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        game_over = True
                        game_close = False
                    if event.key == pygame.K_c:
                        gameLoop()

        # 处理按键事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_over = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    x1_change = -snake_block
                    y1_change = 0
                elif event.key == pygame.K_RIGHT:
                    x1_change = snake_block
                    y1_change = 0
                elif event.key == pygame.K_UP:
                    y1_change = -snake_block
                    x1_change = 0
                elif event.key == pygame.K_DOWN:
                    y1_change = snake_block
                    x1_change = 0

        # 判断蛇是否撞墙
        if x1 >= dis_width or x1 < 0 or y1 >= dis_height or y1 < 0:
            game_close = True

        # 更新蛇头位置
        x1 += x1_change
        y1 += y1_change

        # 绘制背景
        dis.fill(blue)

        # 绘制食物
        pygame.draw.rect(dis, red, [foodx, foody, snake_block, snake_block])

        # 更新蛇身位置
        snake_Head = []
        snake_Head.append(x1)
        snake_Head.append(y1)
        snake_List.append(snake_Head)

        if len(snake_List) > Length_of_snake:
            del snake_List[0]

        # 判断蛇是否吃到食物
        for x in snake_List[:-1]:
            if x == snake_Head:
                game_close = True

        # 绘制蛇
        snake(snake_block, snake_List)
        pygame.display.update()

        # 判断蛇是否吃到食物
        if x1 == foodx and y1 == foody:
            foodx = round(random.randrange(0, dis_width - snake_block) / 10.0) * 10.0
            foody = round(random.randrange(0, dis_height - snake_block) / 10.0) * 10.0
            Length_of_snake += 1

        # 设置帧率
        clock.tick(25)

    # 退出 Pygame 模块
    pygame.quit()
    quit()

# 启动游戏循环
gameLoop()

你可以复制以上代码，粘贴到 Python 环境中运行，就可以玩到贪吃蛇游戏了。