你可以开一个int保存char-'0';
比如:char a='5';
int b=a-'0'
by 一棵树 @ 2019-08-30 11:00:58
希更展，使Md
by Vocalise @ 2019-08-30 11:01:48
0的ascii码不是0
by 一棵树 @ 2019-08-30 11:03:38
希更展，使Md
by Mitch谜团 @ 2019-08-30 11:04:37
前面写错了,是-'a'
by 一棵树 @ 2019-08-30 11:06:32
希更展，使Md
by Kitty5307 @ 2019-08-30 11:13:55