import pygame pygame.init() dis=pygame.display.set_mode((400,300)) pygame.display.update() pygame.display.set_caption('Snake game') game_over=False while not game_over: for event in pygame.event.get(): if event.type==pygame.QUIT: game_over=True pygame.quit() quit() 按照上述要求把这段代码补全

import pygame

pygame.init()

dis = pygame.display.set_mode((400, 300))
pygame.display.set_caption('Snake game')

game_over = False

while not game_over:
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_over = True

# 在这里添加游戏的逻辑代码

pygame.display.update()

pygame.quit()
quit()