/// <summary>
 /// 用户
 /// </summary>
 public class HDUser
 {
  /// <summary>
  /// 用户ID
  /// </summary>
  public string Id { get; set; }
  /// <summary>
  /// 登录名
  /// </summary>
  public string UserName { get; set; }
  /// <summary>
  /// 规范用户名
  /// </summary>
  public string NormalizedUserName { get; set; }
  /// <summary>
  /// 密码
  /// </summary>
  public string PassWord { get; set; }
  /// <summary>
  /// 哈希编码后的密码
  /// </summary>
  public string PasswordHash { get; set; }
  /// <summary>
  /// 用户具有的角色
  /// </summary>
  public virtual ICollection<HDUserRole> Roles { get; private set; } = new List<HDUserRole>();
 }

 /// <summary>
 /// 角色
 /// </summary>
 public class HDRole
 {
  /// <summary>
  /// 角色ID
  /// </summary>
  public string Id { get; set; }
  /// <summary>
  /// 角色名称
  /// </summary>
  public string Name { get; set; }
 }

/// <summary>
 /// 用户角色对应关系
 /// </summary>
 public class HDUserRole
 {
  /// <summary>
  /// 用户ID
  /// </summary>
  public virtual string UserId { get; set; }
  /// <summary>
  ///角色ID
  /// </summary>
  public virtual string RoleId { get; set; }
 }