auto save

snake.py

@@ -61,8 +61,8 @@ while True:
     for i in range(len(position)-1):
         screen.blit(body, position[i])
 
-    # 将果实画上去
-    screen.blit(food, (360, 300))
+    # 将贪吃蛇的头画上去
+    screen.blit（snake
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)