包含和排除属性

    2. {
    3.     public DbSet<Blog> Blogs { get; set; }
    4.     protected override void OnModelCreating(ModelBuilder modelBuilder)
    5.     {
    7.             .Ignore(b => b.LoadedFromDatabase);
    8.     }
    9. }
    10. public class Blog
    12.     public int BlogId { get; set; }
    13.     public string Url { get; set; }
    15.     public DateTime LoadedFromDatabase { get; set; }