EFCore 设置外键

随便搞两个实体类举例:  标红处所展示会生成外键关系

public class Book
{
    /// <summary>
    /// id
    /// </summary>
    public int Id { get; set; }
    /// <summary>
    /// 书本名称
    /// </summary>
    public string Name { get; set; }
    /// <summary>
    /// 价格
    /// </summary>
    public decimal Price { get; set; }
    /// <summary>
    /// 所属类型
    /// </summary>
    public string Type { get; set; }
    /// <summary>
    /// 添加时间
    /// </summary>
    public DateTime CreatTime { get; set; }

    public int PostId { get; set; }
}

public class Post
{
    /// <summary>
    /// 借书人
    /// </summary>
    public int PostId { get; set; }
    /// <summary>
    /// 姓名
    /// </summary>
    public string PostName { get; set; }
    /// <summary>
    /// 性别
    /// </summary>
    public string Sex { get; set; }
    /// <summary>
    /// 住址
    /// </summary>
    public string Address { get; set; }

    public List<Book> Books { get; set; } = new();
}