写一份贪吃蛇的Python代码

当然可以，编写一个简单的贪吃蛇游戏的Python代码通常会涉及到基本的图形用户界面（GUI）、游戏循环、键盘监听以及蛇和食物的移动。以下是一个基本的框架示例：

import pygame
import random

# 初始化pygame
pygame.init()

# 设置窗口尺寸和标题
screen_width = 600
screen_height = 600
window = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption("贪吃蛇")

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

# 蛇的初始设置
snake_speed = 15
snake_pos = [(100, 100), (90, 100), (80, 100)]  # 起始位置和头部
snake_direction = "right"  # 向右

# 食物的随机生成
food_pos = [random.randint(0, screen_width-10), random.randint(0, screen_height-10)]
food_spawn = True

# 游戏主循环
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP and snake_direction != "down":
                snake_direction = "up"
            elif event.key == pygame.K_DOWN and snake_direction != "up":
                snake_direction = "down"
            elif event.key == pygame.K_LEFT and snake_direction != "right":
                snake_direction = "left"
            elif event.key == pygame.K_RIGHT and snake_direction != "left":
                snake_direction = "right"

    # 更新蛇的位置
    new_head = list(snake_pos[-1])
    if snake_direction == "up":
        new_head -= snake_speed
    elif snake_direction == "down":
        new_head += snake_speed
    elif snake_direction == "left":
        new_head -= snake_speed
    elif snake_direction == "right":
        new_head += snake_speed

    # 检查边界和碰撞
    if new_head in snake_pos[:-1] or new_head == food_pos:
        running = False
    else:
        snake_pos.insert(0, new_head)

    # 移动食物
    if food_spawn:
        food_pos = [random.randint(0, screen_width-10), random.randint(0, screen_height-10)]
    else:
        food_pos = snake_pos[0] + snake_speed
        food_pos = snake_pos

    # 绘制
    window.fill(black)
    for pos in snake_pos:
        pygame.draw.rect(window, white, pygame.Rect(pos, pos, 10, 10))
    pygame.draw.rect(window, red, pygame.Rect(food_pos, food_pos, 10, 10))

    # 更新屏幕
    pygame.display.flip()

# 结束游戏
pygame.quit()