Model 类库里定义 viewModel 并没有用

namespace Model
{
public class ViewModels
{

   public List<Plan> pl { get; set; }
   public List<Week> wk { get; set; }

   public partial class Plan_Week {
       public int ID { get; set; }
       public int planid { get; set; }
       public int id { get; set; }

       public virtual Plan p { get; set; }
       public virtual Week w { get; set; }

       public virtual ICollection<Plan> pl { get; set; }
       public virtual ICollection<Week> wk { get; set; }

       public IEnumerable<Week> MenuItems { get; set; }

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