using System; using System.IO; namespace WX.CRM.Common { public static class UserNameHelper { /// /// 随机生成用户名 /// TG_22031618_XS24 /// /// public static string CreateRoundUserName(string fixxStr) { var RoundStt = Path.GetRandomFileName().Substring(0, 4).ToUpper();//随机字符 Random random = new Random(); //var RoundStt = random.Next(1000,9999).ToString();//数字 return $"{fixxStr}_{DateTime.Now.ToString("yyMMddHHmmss")}_{RoundStt}"; } } }