我需要贪吃蛇小游戏的python代码

当然可以，贪吃蛇是一个经典的文本冒险游戏，这里提供一个基本的Python版本作为起点，使用了`pygame`库来创建图形界面：

import pygame
import random

# 初始化pygame
pygame.init()

# 设置窗口大小
window_size = (400, 600)
screen = pygame.display.set_mode(window_size)
pygame.display.set_caption("贪吃蛇")

snake_speed = 15
snake_pos = [[100, 100], [90, 100], [80, 100]]  # 初始蛇身位置
direction = 'right'  # 起始方向：右
food_pos = [random.randint(0, window_size[0] - 1), random.randint(0, window_size[1] - 1)]  # 食物位置

def draw_snake():
    for pos in snake_pos:
        pygame.draw.rect(screen, (0, 255, 0), [pos[0], pos[1], 10, 10])

def move_snake():
    if direction == 'up':
        snake_pos.insert(0, [snake_pos[0][0] - 10, snake_pos[0][1]])
    elif direction == 'down':
        snake_pos.insert(0, [snake_pos[0][0] + 10, snake_pos[0][1]])
    elif direction == 'left':
        snake_pos.insert(0, [snake_pos[0][0], snake_pos[0][1] - 10])
    else:
        snake_pos.insert(0, [snake_pos[0][0], snake_pos[0][1] + 10])

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP and direction != 'down':
                direction = 'up'
            elif event.key == pygame.K_DOWN and direction != 'up':
                direction = 'down'
            elif event.key == pygame.K_LEFT and direction != 'right':
                direction = 'left'
            elif event.key == pygame.K_RIGHT and direction != 'left':
                direction = 'right'

    screen.fill((0, 0, 0))
    draw_snake()
    food_pos = [random.choice(range(window_size[0])) * 10, random.choice(range(window_size[1])) * 10]
    if snake_pos[0] == food_pos:
        snake_pos.append([snake_pos[-1][0], snake_pos[-1][1]])
        snake_speed += 5
    else:
        snake_pos.pop()

    move_snake()
    pygame.display.update()
    pygame.time.delay(snake_speed)