save project

snake.py

@@ -59,6 +59,7 @@ while True:
         num_y=randint(0,15)
         num_y=randint(0,15)
         food_x=num_x*30
         food_x=num_x*30
         food_y=num_y*30
         food_y=num_y*30
+    else:
         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))