$a$ $mod$ $b = a - \lfloor\frac{a}{b}\rfloor*b$
by qqvq @ 2018-06-16 14:58:02
@[Ycrpro](/space/show?uid=29089) 知道了，谢谢！%%%
by ACINE @ 2018-06-16 15:06:52
@[ACINE](/space/show?uid=70058) 我是菜鸡
by qqvq @ 2018-06-16 17:22:47