用python编译一个贪吃蛇小游戏

好的，下面是一个简单的贪吃蛇小游戏的Python代码：

import pygame
import random

# 初始化游戏
pygame.init()

# 设置游戏界面尺寸
size = width, height = 640, 480
screen = pygame.display.set_mode(size)

# 设置游戏标题
pygame.display.set_caption("贪吃蛇")

# 设置颜色
white = (255, 255, 255)
black = (0, 0, 0)
red = (255, 0, 0)

# 设置字体
font = pygame.font.SysFont(None, 25)

# 设置蛇的初始位置和大小
snake_size = 10
snake_speed = 15

# 定义蛇的移动函数
def snake(snake_size, snake_list):
    for x in snake_list:
        pygame.draw.rect(screen, black, [x[0], x[1], snake_size, snake_size])

# 定义游戏主循环
def gameLoop():
    game_exit = False
    game_over = False

    # 设置蛇的初始位置
    lead_x = width / 2
    lead_y = height / 2

    # 设置蛇的初始移动方向
    lead_x_change = 0
    lead_y_change = 0

    # 定义蛇的身体
    snake_list = []
    snake_length = 1

    # 设置食物的初始位置
    food_x = round(random.randrange(0, width - snake_size) / 10.0) * 10.0
    food_y = round(random.randrange(0, height - snake_size) / 10.0) * 10.0

    while not game_exit:

        # 游戏结束后显示分数
        while game_over == True:
            screen.fill(white)
            message("游戏结束，按 Q 退出，按 C 重新开始", red)
            pygame.display.update()

            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        game_exit = True
                        game_over = False
                    if event.key == pygame.K_c:
                        gameLoop()

        # 处理游戏事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_exit = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    lead_x_change = -snake_size
                    lead_y_change = 0
                elif event.key == pygame.K_RIGHT:
                    lead_x_change = snake_size
                    lead_y_change = 0
                elif event.key == pygame.K_UP:
                    lead_y_change = -snake_size
                    lead_x_change = 0
                elif event.key == pygame.K_DOWN:
                    lead_y_change = snake_size
                    lead_x_change = 0

        # 判断蛇是否撞到边界
        if lead_x >= width or lead_x < 0 or lead_y >= height or lead_y < 0:
            game_over = True

        # 更新蛇的位置
        lead_x += lead_x_change
        lead_y += lead_y_change

        # 画出蛇和食物
        screen.fill(white)
        pygame.draw.rect(screen, red, [food_x, food_y, snake_size, snake_size])
        snake_head = []
        snake_head.append(lead_x)
        snake_head.append(lead_y)
        snake_list.append(snake_head)
        if len(snake_list) > snake_length:
            del snake_list[0]

        for x in snake_list[:-1]:
            if x == snake_head:
                game_over = True

        snake(snake_size, snake_list)
        pygame.display.update()

        # 判断蛇是否吃到食物
        if lead_x == food_x and lead_y == food_y:
            food_x = round(random.randrange(0, width - snake_size) / 10.0) * 10.0
            food_y = round(random.randrange(0, height - snake_size) / 10.0) * 10.0
            snake_length += 1

        # 设置游戏帧率
        clock = pygame.time.Clock()
        clock.tick(snake_speed)

    # 退出游戏
    pygame.quit()
    quit()

# 显示文字
def message(msg, color):
    screen_text = font.render(msg, True, color)
    screen.blit(screen_text, [width / 6, height / 3])

# 运行游戏
gameLoop()

运行上述代码即可玩贪吃蛇小游戏。