python写贪吃蛇

好的，下面是一个简单的 Python 贪吃蛇游戏的代码示例：

import pygame
import random

# 初始化 Pygame
pygame.init()

# 游戏界面大小
size = (800, 600)
screen = pygame.display.set_mode(size)

# 设置窗口标题
pygame.display.set_caption("贪吃蛇")

# 定义颜色
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)
RED = (255, 0, 0)

# 设置游戏时钟
clock = pygame.time.Clock()

# 定义蛇的初始位置和大小
snake_block = 10
snake_speed = 15

# 定义字体
font_style = pygame.font.SysFont(None, 30)

# 显示得分
def show_score(score):
    score_font = font_style.render("得分: " + str(score), True, WHITE)
    screen.blit(score_font, [0, 0])

# 画蛇
def draw_snake(snake_block, snake_list):
    for x in snake_list:
        pygame.draw.rect(screen, GREEN, [x[0], x[1], snake_block, snake_block])

# 显示消息
def message(msg, color):
    mesg = font_style.render(msg, True, color)
    screen.blit(mesg, [size[0]/6, size[1]/3])

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

    # 定义蛇的初始位置
    x1 = size[0] / 2
    y1 = size[1] / 2

    # 蛇的移动距离
    x1_change = 0       
    y1_change = 0

    # 定义蛇的初始长度
    snake_List = []
    Length_of_snake = 1

    # 随机生成食物的位置
    foodx = round(random.randrange(0, size[0] - snake_block) / 10.0) * 10.0
    foody = round(random.randrange(0, size[1] - snake_block) / 10.0) * 10.0

    # 游戏主循环
    while not game_over:

        while game_close == True:
            screen.fill(BLACK)
            message("你失败了! 按 Q 退出或按 C 重新开始", RED)
            show_score(Length_of_snake - 1)
            pygame.display.update()

            # 判断用户操作
            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()

        # 判断用户操作
        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

        # 判断是否撞墙
        if x1 >= size[0] or x1 < 0 or y1 >= size[1] or y1 < 0:
            game_close = True

        # 更新蛇的位置
        x1 += x1_change
        y1 += y1_change

        # 更新游戏界面
        screen.fill(BLACK)
        pygame.draw.rect(screen, RED, [foodx, foody, snake_block, snake_block])
        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]

        for x in snake_List[:-1]:
            if x == snake_Head:
                game_close = True

        draw_snake(snake_block, snake_List)
        show_score(Length_of_snake - 1)
        pygame.display.update()

        # 判断是否吃到食物
        if x1 == foodx and y1 == foody:
            foodx = round(random.randrange(0, size[0] - snake_block) / 10.0) * 10.0
            foody = round(random.randrange(0, size[1] - snake_block) / 10.0) * 10.0
            Length_of_snake += 1

        # 设置游戏帧率
        clock.tick(snake_speed)

    # 退出 Pygame
    pygame.quit()

# 开始游戏
gameLoop()

这就是一个简单的 Python 贪吃蛇游戏，你可以根据自己的需求进行修改和扩展。