给我用python实现贪吃蛇

好的，我可以帮您解决这个问题。以下是一个基本的贪吃蛇游戏的 Python 实现：

import pygame
import random

pygame.init()

# 设置窗口大小和标题
screen_width = 400
screen_height = 400
screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption("贪吃蛇游戏")

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

# 定义蛇的属性
block_size = 10
snake_speed = 15

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

# 显示分数
def show_score(score):
    score_text = font_style.render("分数：" + str(score), True, white)
    screen.blit(score_text, [0, 0])

# 绘制蛇
def draw_snake(snake_block, snake_list):
    for x in snake_list:
        pygame.draw.rect(screen, green, [x[0], x[1], snake_block, snake_block])

# 主函数
def game_loop():
    game_over = False
    game_close = False

    x1 = screen_width / 2
    y1 = screen_height / 2

    x1_change = 0       
    y1_change = 0

    snake_list = []
    Length_of_snake = 1

    foodx = round(random.randrange(0, screen_width - block_size) / 10.0) * 10.0
    foody = round(random.randrange(0, screen_height - block_size) / 10.0) * 10.0

    # 主游戏循环
    while not game_over:

        while game_close == True:
            screen.fill(black)
            message = font_style.render("Game Over!再试一次按Q退出按C", True, white)
            screen.blit(message, [screen_width/6, screen_height/3])
            show_score(Length_of_snake - 1)
            pygame.display.update()

            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        game_over = True
                        game_close = False
                    if event.key == pygame.K_c:
                        game_loop()

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_over = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    x1_change = -block_size
                    y1_change = 0
                elif event.key == pygame.K_RIGHT:
                    x1_change = block_size
                    y1_change = 0
                elif event.key == pygame.K_UP:
                    y1_change = -block_size
                    x1_change = 0
                elif event.key == pygame.K_DOWN:
                    y1_change = block_size
                    x1_change = 0

        # 判断是否超出屏幕
        if x1 >= screen_width or x1 < 0 or y1 >= screen_height or y1 < 0:
            game_close = True

        # 更新移动位置
        x1 += x1_change
        y1 += y1_change

        screen.fill(black)

        # 绘制食物
        pygame.draw.rect(screen, red, [foodx, foody, block_size, block_size])

        # 绘制蛇
        snake_head = []
        snake_head.append(x1)
        snake_head.append(y1)
        snake_list.append(snake_head)
        if len(snake_list) > Length_of_snake:
            del snake_list[0]

        for x in snake_list[:-1]:
            if x == snake_head:
                game_close = True

        draw_snake(block_size, snake_list)
        show_score(Length_of_snake - 1)

        pygame.display.update()

        # 如果吃到食物，重新生成食物并增加蛇的长度
        if x1 == foodx and y1 == foody:
            foodx = round(random.randrange(0, screen_width - block_size) / 10.0) * 10.0
            foody = round(random.randrange(0, screen_height - block_size) / 10.0) * 10.0
            Length_of_snake += 1

        # 控制蛇移动的速度
        clock = pygame.time.Clock()
        clock.tick(snake_speed)

    pygame.quit()
    quit()

game_loop()

希望能对您有所帮助！