5.对与表与表之间的关系，efcore是如何处理的

public class Account
    {
        [Key]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int AccountID { get; set; }
        public string LoginName { get; set; }
        public string Password { get; set; }
        public string SecurityStamp { get; set; }
        /// <summary>
        /// 默认： 1 可以登录   0 已删除(不能登陆)
        /// </summary>
        public int Status { get; set; }
        public virtual AccountInfo AccountInfo { get; set; }

        [ForeignKey("Role")]
        public int RoleID { get; set; }
        public virtual Role Role { get; set; }
        public virtual ICollection<AccountModule> AccountModules { get; set; }

    }

 public class AccountInfo
    {
        [Key]
        [ForeignKey("Account")]
        public int AccountID { get; set; }
        public virtual Account Account { get; set; }
        [Required]
        [StringLength()]
        public string Email { get; set; }
        [StringLength()]
        public string Mobile { get; set; }
        [StringLength()]
        public string Telephone { get; set; }
        [Required]
        [StringLength()]
        public string Name { get; set; }
        [StringLength()]
        public string QQNumber { get; set; }
    }

 public class AccountModule
    {
        [Key]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int AccountModuleID { get; set; }

        [ForeignKey("Account")]
        public int AccountID { get; set; }
        public virtual Account Account { get; set; }

        [ForeignKey("Module")]
        public int ModuleID { get; set; }
        public virtual Module Module { get; set; }
    }

 public class Role
    {
        [Key]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int RoleID { get; set; }
        public string RoleName { get; set; }
    }

看了上面几个Model相信大家已经知道了吧。

1对1,就是Account 对于 AccountInfo

多对一 就是Account对于Role

多对多 就是Account对于Module

相信大家应该已经理解了