完善框架，新增两个close方法；

alielie

2025-03-17 c401a2f2fd1a509cdeb33e850bb5c2827074af48

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using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;
using System.Windows;
using WPFProject.Models;
using WPFProject.UI.Test;
 
namespace WPFProject.ViewModels
{
    public class ProgramListViewModel : NotifyBase
    {
 
 
    }
}