用戶部分要實現的功能有：
序 
一、用戶 
1.1用戶注冊 
1.2用戶登錄 
1.3修改密碼 
1.4修改資料

要實現這些目的首先新建用戶（Model）模型

/// <summary> /// 用戶模型 /// </summary> public class User { [Key] public int UserId { get; set; } /// <summary> /// 用戶組Id /// </summary> [Display(Name="用戶組Id")] [Required(ErrorMessage = "×")] public int GroupId { get; set; } /// <summary> /// 用戶名 /// </summary> [Display(Name="用戶名",Description="4-20個字符。")] [Required(ErrorMessage = "×")] [StringLength(20, MinimumLength = 4, ErrorMessage = "×")] public string UserName { get; set; } /// <summary> /// 密碼 /// </summary> [Required] [StringLength(256)] public string Password { get; set; } /// <summary> /// 性別【0-男；1-女；2-保密】 /// </summary> [Display(Name="性別")] [Required(ErrorMessage = "×")] [Range(0,2,ErrorMessage = "×")] public byte Gender { get; set; } /// <summary> /// Email /// </summary> [Display(Name="Email",Description="請輸入您常用的Email。")] [Required(ErrorMessage = "×")] [EmailAddress(ErrorMessage = "×")] public string Email { get; set; } /// <summary> /// 密保問題 /// </summary> [Display(Name="密保問題",Description="請正確填寫，在您忘記密碼時用戶找回密碼。4-20個字符。")] [Required(ErrorMessage = "×")] [StringLength(20, MinimumLength = 4, ErrorMessage = "×")] public string SecurityQuestion { get; set; } /// <summary> /// 密保答案 /// </summary> [Display(Name="密保答案",Description="請認真填寫，忘記密碼后回答正確才能找回密碼。2-20個字符。")] [Required(ErrorMessage = "×")] [StringLength(20, MinimumLength = 2, ErrorMessage = "×")] public string SecurityAnswer { get; set; } /// <summary> /// QQ號碼 /// </summary> [Display(Name="QQ號碼")] [RegularExpression("^[1-9][0-9]{4-13]$",ErrorMessage = "×")] [StringLength(12, MinimumLength = 6, ErrorMessage = "×")] public string QQ { get; set; } /// <summary> /// 電話號碼 /// </summary> [Display(Name="電話號碼",Description="常用的聯系電話（手機或固話），固話格式為：區號-號碼。")] [RegularExpression("^[0-9-]{11-13}$",ErrorMessage = "×")] public string Tel { get; set; } /// <summary> /// 聯系地址 /// </summary> [Display(Name="聯系地址",Description="常用地址，最多80個字符。")] [StringLength(80, ErrorMessage = "×")] public string Address { get; set; } /// <summary> /// 郵編 /// </summary> [Display(Name="郵編")] [RegularExpression("^[0-9]{6}$",ErrorMessage = "×")] public string PostCode { get; set; } /// <summary> /// 注冊時間 /// </summary> public DateTime? RegTime { get; set; } /// <summary> /// 上次登錄時間 /// </summary> public DateTime? LastLoginTime { get; set; } /// <summary> /// 用戶組 /// </summary> public virtual UserGroup Group { get; set; } }