private void ExecuteCheckCmd(MetaViewModel p)
        {
            switch (p.IsChoose)
            {
            //未选中->选中
            case 1:
            {
                if (!SelectList.Contains(p))
                {
                    SelectList.Add(p);
                }
                break;
            }

            default:
            {
                //选中->未选中
                if (SelectList.Contains(p))
                {
                    SelectList.Remove(p);
                }
                break;
            }
            }
        }