using System.ComponentModel.DataAnnotations; namespace Apimanager_backend.Dtos { public class RegisterRequestDto { [Required(ErrorMessage = "用户名必填!")] [MaxLength(20,ErrorMessage = "用户名最长20字符!")] public string Username { get; set; } [Required(ErrorMessage = "密码必填!")] public string Password { get; set; } [Required(ErrorMessage = "邮箱必填!")] public string Email { get; set; } [Required(ErrorMessage = "验证码必填!")] public string VerificationCode { get; set; } } }