ef codeFirst 数据库迁移
public int Id { get; set; }
/// <summary>
/// 任务名称
/// </summary>
public string Name { get; set; }
/// <summary>
/// 描述
/// </summary>
public string Description { get; set; }
/// <summary>
/// 负责人
/// </summary>
public int? UserId { get; set; }
public virtual User User { get; set; }
/// <summary>
/// 创建人
/// </summary>
public int? FounderId { get; set; }
public virtual User Founder { get; set; }
/// <summary>
/// 开始时间
/// </summary>
public DateTime CreateTime { get; set; }
public virtual ICollection<Periodization> Periodizations { get; set; }
public virtual ICollection<Stage> Stages { get; set; }