@[dfydada](/space/show?uid=156734) k是一个倍数,1<=kx<=n。 by _jhq @ 2019-08-22 08:16:49
@[_jhq](/space/show?uid=178910) 知道了,谢谢 by dfydada⚡⚡⚡ @ 2019-08-22 09:50:55