string Str = Regex.Replace(HexStr, @"(?<=[0-9A-F]{2})[0-9A-F]{2}", " $0"); 相关文章: 2021-09-16 2021-10-17 2022-12-23 2022-12-23 2021-11-25 2021-11-16 2022-12-23 2021-08-25