save project

snake.py

@@ -3,10 +3,13 @@ from pygame import locals
 
 # 初始化pygame，为使用pygame做准备
 pygame.init()
+y=pygame.image.load('bg.ping')
 
 # 创建一个窗口
 e=pygame.display.set_mode((660,480))
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
-            exit()
\ No newline at end of file
+            exit()
+    e.blit(y,(0,0))
+    pygame.display.update
\ No newline at end of file