save project

snake.py

@@ -6,6 +6,11 @@ pygame.init()
 # 创建一个窗口
 screen =  pygame.display.set_mode((660,480))
 while  True:
-    for evrnt  in pygame.event.get():
+    for  event in pygame.event.get():
         if event.type == locals.QUIT:
-            exit()
\ No newline at end of file
+            exit()
+
+            screen.blit(background,(0,0))
+            screen.blit(right,(240,120))
+            screen.blit(food,(360,300))
+            pygame.display.update()
\ No newline at end of file