EK()的类型：int->void，然后就可以了~
by Yahbim @ 2021-08-04 11:05:51
@[Ceru](/user/95745) 建议编译的时候加个-Wall，这样就不会出这种错了
by Yahbim @ 2021-08-04 11:07:22
@[Yahbim](/user/372708) 谢谢大佬，知道了
by Ceru @ 2021-08-04 11:10:07