auto save

snake.py

@@ -58,6 +58,8 @@ while True:
     if x==apple_x and y==apple_y:
         apple_x=random.randint(0,660)
         apple_y=random.randint(0,480)
+
+        
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))