怎么用python写贪吃蛇

你可以使用 Python 中的 Pygame 模块来编写贪吃蛇游戏。以下是一个简单的贪吃蛇游戏示例：

import pygame
import random

# 初始化 Pygame
pygame.init()

# 游戏窗口尺寸
window_size = (400, 400)

# 设置游戏窗口
screen = pygame.display.set_mode(window_size)

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

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

# 定义蛇的初始位置
snake_position = [100, 50]

# 定义贪吃蛇的初始长度
snake_body = [[100, 50], [90, 50], [80, 50]]

# 定义食物的初始位置
food_position = [random.randrange(1, 40) * 10, random.randrange(1, 40) * 10]

# 定义食物数量
food_count = 1

# 定义初始分数
score = 0

# 定义蛇的移动方向
direction = "RIGHT"

# 定义字体
font_style = pygame.font.SysFont(None, 30)

# 定义分数显示函数
def show_score(score):
    score_text = font_style.render("Score: " + str(score), True, white)
    screen.blit(score_text, [0, 0])

# 定义蛇的移动函数
def move_snake(direction, snake_position, snake_body):
    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
    snake_body.insert(0, list(snake_position))

# 定义游戏结束函数
def game_over():
    message = font_style.render("Game Over!", True, white)
    screen.blit(message, [150, 200])

# 开始游戏循环
game_over_flag = False

while not game_over_flag:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game_over_flag = True
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                direction = "RIGHT"
            elif event.key == pygame.K_LEFT:
                direction = "LEFT"
            elif event.key == pygame.K_UP:
                direction = "UP"
            elif event.key == pygame.K_DOWN:
                direction = "DOWN"

    # 绘制游戏背景
    screen.fill(black)

    # 绘制食物
    pygame.draw.rect(screen, green, [food_position[0], food_position[1], 10, 10])

    # 移动蛇
    move_snake(direction, snake_position, snake_body)

    # 绘制蛇
    for position in snake_body:
        pygame.draw.rect(screen, white, [position[0], position[1], 10, 10])

    # 如果蛇吃到了食物
    if snake_position[0] == food_position[0] and snake_position[1] == food_position[1]:
        food_position = [random.randrange(1, 40) * 10, random.randrange(1, 40) * 10]
        food_count += 1
        score += 10

    # 显示分数
    show_score(score)

    # 如果蛇碰到了边界
    if snake_position[0] >= 400 or snake_position[0] < 0 or snake_position[1] >= 400 or snake_position[1] < 0:
        game_over()

    # 如果蛇碰到了自己
    for block in snake_body[1:]:
        if snake_position[0] == block[0] and snake_position[1] == block[1]:
            game_over()

    # 更新屏幕
    pygame.display.update()

    # 控制游戏帧率
    pygame.time.Clock().tick(20)

# 退出 Pygame
pygame.quit()

这只是一个简单的贪吃蛇游戏示例，你可以根据自己的需求进行修改和完善。