【例40.1】字符类型判断

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	maochenyi	13ms	540 KiB	C++11	367 Bytes	2024-7-28 14:14:31
AC	ludaichen	14ms	764 KiB	C++11	254 Bytes	2024-7-30 17:10:44
AC	chenzihao	14ms	764 KiB	C++11	261 Bytes	2024-7-31 13:50:51
AC	zhuxuanyu	14ms	540 KiB	C++11	320 Bytes	2024-7-30 22:00:47
AC	liujinghang	15ms	536 KiB	C++11	364 Bytes	2024-8-19 9:19:28
AC	chenwangzixuan	15ms	536 KiB	C++11	255 Bytes	2024-8-7 15:12:50