换成`scanf("%s",ch+1)`读入就行了
by _yozora @ 2021-09-11 17:00:19
@[Sz_zUwu](/user/444418) 谢谢大佬
by LZX_ssfd @ 2021-09-11 17:55:24
@[LZX_ssfd](/user/289436) φ(゜▽゜*)♪
by _yozora @ 2021-09-11 17:56:13