auto save

snake.py

 import pygame
 import pygame
-
-# 初始化pygame，为使用pygame做准备
-pygame.init()
-
-# 创建一个窗口
-??
+from pygame import locals
+pygame.init()   
+background = pygame.image.load('bg.png')                                                                                                                                                                                                                                                                                
+screen = pygame.display.set_mode((660,480))
+while True:
+    for event in pygame.event.get():
\ No newline at end of file
+        print(event)
+        if event.type == locals.QUIT:
+            exit()
+    screen.blit(background,(0,0))
+    pygame.display.update()
\ No newline at end of file