save project

snake.py

@@ -3,12 +3,16 @@ from pygame import locals
 pygame.init()
 screen=pygame.display.set_mode((660,480))
 #加载图片
-
+background=pygame.image.load('bg.png')
+right=
+apple=
+body=
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
     #渲染图片
+    screen.blit(background,(0,0))
 
     #更新界面
-    
\ No newline at end of file
+    pygame.display.update()
\ No newline at end of file