用Python代码做一个贪吃蛇游戏

好的，我可以回答这个问题。以下是一个简单的Python代码实现贪吃蛇游戏：

import pygame
import random

# 初始化pygame
pygame.init()

# 设置游戏窗口大小
window_width = 800
window_height = 600
game_window = pygame.display.set_mode((window_width, window_height))

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

# 定义颜色
white = (255, 255, 255)
black = (0, 0, 0)
red = (255, 0, 0)
green = (0, 255, 0)
blue = (0, 0, 255)

# 定义贪吃蛇的初始位置和大小
snake_block_size = 10
snake_speed = 15
snake_list = []
snake_length = 1
snake_x = window_width / 2
snake_y = window_height / 2

# 定义食物的初始位置和大小
food_block_size = 10
food_x = round(random.randrange(0, window_width - food_block_size) / 10.0) * 10.0
food_y = round(random.randrange(0, window_height - food_block_size) / 10.0) * 10.0

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

# 定义分数
def show_score(score):
    score_text = font_style.render("Score: " + str(score), True, black)
    game_window.blit(score_text, [0, 0])

# 定义贪吃蛇的形状和移动
def draw_snake(snake_block_size, snake_list):
    for x in snake_list:
        pygame.draw.rect(game_window, green, [x[0], x[1], snake_block_size, snake_block_size])

def snake(snake_block_size, snake_list):
    for x in snake_list:
        pygame.draw.rect(game_window, green, [x[0], x[1], snake_block_size, snake_block_size])

# 定义游戏结束的提示信息
def message(msg, color):
    mesg = font_style.render(msg, True, color)
    game_window.blit(mesg, [window_width / 6, window_height / 3])

# 游戏循环
game_over = False
while not game_over:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_over = True

        # 定义贪吃蛇的移动方向
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                x_change = -snake_block_size
                y_change = 0
            elif event.key == pygame.K_RIGHT:
                x_change = snake_block_size
                y_change = 0
            elif event.key == pygame.K_UP:
                y_change = -snake_block_size
                x_change = 0
            elif event.key == pygame.K_DOWN:
                y_change = snake_block_size
                x_change = 0

    # 判断贪吃蛇是否撞到墙壁
    if snake_x >= window_width or snake_x < 0 or snake_y >= window_height or snake_y < 0:
        game_over = True

    # 更新贪吃蛇的位置
    snake_x += x_change
    snake_y += y_change

    # 判断贪吃蛇是否吃到食物
    if snake_x == food_x and snake_y == food_y:
        food_x = round(random.randrange(0, window_width - food_block_size) / 10.0) * 10.0
        food_y = round(random.randrange(0, window_height - food_block_size) / 10.0) * 10.0
        snake_length += 1

    # 绘制游戏窗口
    game_window.fill(white)
    pygame.draw.rect(game_window, red, [food_x, food_y, food_block_size, food_block_size])
    snake_head = []
    snake_head.append(snake_x)
    snake_head.append(snake_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

    draw_snake(snake_block_size, snake_list)
    show_score(snake_length - 1)
    pygame.display.update()

    # 设置游戏速度
    clock = pygame.time.Clock()
    clock.tick(snake_speed)

# 显示游戏结束的提示信息
message("游戏结束", red)
pygame.display.update()

# 等待3秒后退出游戏
pygame.time.wait(3000)

# 退出pygame
pygame.quit()

希望这个代码能够帮助你实现贪吃蛇游戏。