save project

snake.py

@@ -3,11 +3,13 @@ from pygame import locals
 
 # 初始化pygame，为使用pygame做准备
 pygame.init()
-
+background=pygame.image.load('bg')
 # 创建一个窗口
 screen=pygame.display.set_mode((660,480))
 while True:
     for event in pygame.event.get():
         print(event)
         if event.type == locals.QUIT:
-            exit()
\ No newline at end of file
+            exit()
+screen.blit(background,(0,0))
+pygame.display.update()