auto save

snake.py

@@ -62,8 +62,7 @@ while True:
         apple_y = num2 * 30 - 30
         apple_y = num2 * 30 - 30
     else:
     else:
         position.pop(0)
         position.pop(0)
-
-    position.pop(0)
+  
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去