用python写一个贪吃蛇小游戏

当然可以！以下是一个简单的贪吃蛇小游戏的Python代码示例：

import pygame
import random

# 初始化游戏
pygame.init()

# 游戏窗口的尺寸
width = 640
height = 480

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

# 创建游戏窗口
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption('贪吃蛇')

# 设置帧率
fps = pygame.time.Clock()

# 贪吃蛇初始位置
snake_pos = [100, 50]
# 贪吃蛇初始长度和速度
snake_body = [[100, 50], [90, 50], [80, 50]]
speed = [10, 0]

# 食物初始位置
food_pos = [random.randrange(1, (width//10)) * 10,
            random.randrange(1, (height//10)) * 10]
food_spawn = True

# 初始化分数
score = 0

# 游戏结束标志
game_over = False

# 游戏主循环
while not game_over:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_over = True
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                speed = [10, 0]
            elif event.key == pygame.K_LEFT:
                speed = [-10, 0]
            elif event.key == pygame.K_UP:
                speed = [0, -10]
            elif event.key == pygame.K_DOWN:
                speed = [0, 10]

    # 更新贪吃蛇位置
    snake_pos[0] += speed[0]
    snake_pos[1] += speed[1]

    # 检查是否吃到食物
    if snake_pos[0] == food_pos[0] and snake_pos[1] == food_pos[1]:
        score += 1
        food_spawn = False
    else:
        snake_body.pop(0)

    # 生成新的食物
    if not food_spawn:
        food_pos = [random.randrange(1, (width//10)) * 10,
                    random.randrange(1, (height//10)) * 10]
        food_spawn = True

    # 检查是否撞到墙壁或自身
    if snake_pos[0] < 0 or snake_pos[0] > width-10 or snake_pos[1] < 0 or snake_pos[1] > height-10:
        game_over = True
    for block in snake_body[:-1]:
        if block == snake_pos:
            game_over = True

    # 更新贪吃蛇身体
    snake_body.append(list(snake_pos))

    # 绘制游戏窗口
    screen.fill(black)
    for pos in snake_body:
        pygame.draw.rect(screen, green, pygame.Rect(
            pos[0], pos[1], 10, 10))
    pygame.draw.rect(screen, white, pygame.Rect(
        food_pos[0], food_pos[1], 10, 10))

    # 更新分数
    font = pygame.font.Font(None, 36)
    score_text = font.render("Score: " + str(score), True, white)
    screen.blit(score_text, (10, 10))

    # 更新游戏窗口
    pygame.display.flip()

    # 控制帧率
    fps.tick(20)

# 退出游戏
pygame.quit()

你可以在Python环境中运行这段代码，就能够玩到贪吃蛇小游戏了。希望能帮到你！