auto save

snake.py

@@ -8,7 +8,12 @@ pygame.init()
 screen = pygame.display.set_mode((660, 480))
 
 # 背景
-background = pygame.image.load('bg.png')
+
+    screen.blit(body, (180, 90))
+    # 将果实画上去
+    screen.blit(food, (360, 300))
+    # 刷新画面
+    pygame.display.update()background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
@@ -25,8 +30,3 @@ while True:
     # 将贪吃蛇的身体画上去
     screen.blit(body, (210, 120))
     screen.blit(body, (180, 120))
\ No newline at end of file
-    screen.blit(body, (180, 90))
-    # 将果实画上去
-    screen.blit(food, (360, 300))
-    # 刷新画面
-    pygame.display.update()
\ No newline at end of file