能用python做一个贪吃蛇小游戏吗

当然可以！这里是一个用Python实现的简单贪吃蛇游戏示例，供您参考：

import pygame
import random

# 初始化 pygame
pygame.init()

# 设置游戏窗口大小
width, height = 640, 480
screen = pygame.display.set_mode((width, height))

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

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

# 定义蛇的初始位置、长度和速度
snake_pos = [(width // 2, height // 2)]
snake_len = 1
snake_speed = 10

# 定义蛇的移动方向
snake_dir = "right"

# 定义食物的位置
food_pos = (random.randint(0, width), random.randint(0, height))

# 游戏循环
running = True
while running:
    # 处理游戏事件
    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_dir != "down":
                snake_dir = "up"
            elif event.key == pygame.K_DOWN and snake_dir != "up":
                snake_dir = "down"
            elif event.key == pygame.K_LEFT and snake_dir != "right":
                snake_dir = "left"
            elif event.key == pygame.K_RIGHT and snake_dir != "left":
                snake_dir = "right"

    # 根据蛇的移动方向更新蛇的位置
    if snake_dir == "up":
        snake_pos.insert(0, (snake_pos[0][0], snake_pos[0][1] - snake_speed))
    elif snake_dir == "down":
        snake_pos.insert(0, (snake_pos[0][0], snake_pos[0][1] + snake_speed))
    elif snake_dir == "left":
        snake_pos.insert(0, (snake_pos[0][0] - snake_speed, snake_pos[0][1]))
    elif snake_dir == "right":
        snake_pos.insert(0, (snake_pos[0][0] + snake_speed, snake_pos[0][1]))

    # 判断蛇是否吃到食物
    if snake_pos[0] == food_pos:
        snake_len += 1
        food_pos = (random.randint(0, width), random.randint(0, height))

    # 判断蛇是否撞墙或撞到自己
    if (snake_pos[0][0] < 0 or snake_pos[0][0] > width or
            snake_pos[0][1] < 0 or snake_pos[0][1] > height or
            snake_pos[0] in snake_pos[1:]):
        running = False

    # 绘制游戏场景
    screen.fill(black)
    pygame.draw.rect(screen, green, (food_pos[0], food_pos[1], 10, 10))
    for pos in snake_pos[:snake_len]:
        pygame.draw.rect(screen, white, (pos[0], pos[1], 10, 10))
    pygame.display.flip()

    # 控制游戏帧率
    pygame.time.delay(50)

# 退出游戏
pygame.quit()

这个示例程序中，我们使用了 Pygame 模块来实现游戏窗口的创建、事件处理、图形绘制等功能。游戏的主循环中，我们实现了蛇的移动、食物的生成和判断蛇是否撞墙或撞到自己等功能。

希望这个示例程序对您有所帮助！