用ptython写贪吃蛇

当然可以用Python编写贪吃蛇游戏！下面是一个简单的代码示例，可以让你开始编写自己的贪吃蛇游戏：

import pygame
import random

# 初始化游戏
pygame.init()

# 设置屏幕尺寸
screen_width = 500
screen_height = 500
screen = pygame.display.set_mode((screen_width, screen_height))

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

# 设置游戏变量
snake_position = [100, 50]
snake_body = [[100, 50], [90, 50], [80, 50]]
food_position = [random.randrange(1, 50) * 10, random.randrange(1, 50) * 10]
food_spawn = True
direction = "RIGHT"
change_to = direction
score = 0

# 游戏循环
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()

        # 按键事件处理
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                change_to = "RIGHT"
            elif event.key == pygame.K_LEFT:
                change_to = "LEFT"
            elif event.key == pygame.K_UP:
                change_to = "UP"
            elif event.key == pygame.K_DOWN:
                change_to = "DOWN"

    # 方向处理
    if change_to == "RIGHT" and direction != "LEFT":
        direction = "RIGHT"
    elif change_to == "LEFT" and direction != "RIGHT":
        direction = "LEFT"
    elif change_to == "UP" and direction != "DOWN":
        direction = "UP"
    elif change_to == "DOWN" and direction != "UP":
        direction = "DOWN"

    # 蛇移动
    if direction == "RIGHT":
        snake_position[0] += 10
    elif direction == "LEFT":
        snake_position[0] -= 10
    elif direction == "UP":
        snake_position[1] -= 10
    elif direction == "DOWN":
        snake_position[1] += 10

    # 蛇身更新
    snake_body.insert(0, list(snake_position))
    if snake_position == food_position:
        food_spawn = False
        score += 10
    else:
        snake_body.pop()

    # 食物出现
    if not food_spawn:
        food_position = [random.randrange(1, 50) * 10, random.randrange(1, 50) * 10]
    food_spawn = True

    # 重绘屏幕
    screen.fill((0, 0, 0))
    for position in snake_body:
        pygame.draw.rect(screen, (255, 255, 255), pygame.Rect(
            position[0], position[1], 10, 10))

    pygame.draw.rect(screen, (255, 0, 0), pygame.Rect(
        food_position[0], food_position[1], 10, 10))

    # 游戏结束判断
    if snake_position[0] < 0 or snake_position[0] > screen_width-10:
        pygame.quit()
        quit()
    if snake_position[1] < 0 or snake_position[1] > screen_height-10:
        pygame.quit()
        quit()
    for block in snake_body[1:]:
        if snake