@[帅皮的瓜粉](/user/330451)
`s=s+a.a*a.b*b.b;`
s 是stack啊,还能做加法?
by iMya_nlgau @ 2020-05-13 21:47:23
@[Sapphire6575737973](/user/176569) 好吧,是我迷惑了(剁手中)
by 帅皮的瓜粉 @ 2020-05-13 21:50:53