@[chen_zhe](/user/8457)
by K2Cr2O7 @ 2020-11-06 13:12:20
或者 `非零整数` 更严谨。
by K2Cr2O7 @ 2020-11-06 13:13:34
@[StudyingFather](/user/22030)
by P31pr @ 2021-12-18 22:41:08
@[Alex_Wei](/user/123294)
by TG178X @ 2023-04-08 11:17:25
@[TG178X](/user/567387) okfixed
by Alex_Wei @ 2023-04-08 11:26:30