void AppendByAccount()
        {
            UIAccountEditor ui = new UIAccountEditor();

            if (ui.ShowDialog(this) == DialogResult.OK)
            {
                Account act = new Account();
                ui.CurrentAccount.CopyTo(act);
                if (_e.AppendAccount(act))
                {
                    ListViewItem item = new ListViewItem();
                    item.Text     = act.Name;
                    item.ImageKey = "all";
                    item.SubItems.Add(act.ID);
                    if (System.IO.File.Exists(act.FullPath))
                    {
                        item.SubItems.Add("正常");
                    }
                    else
                    {
                        item.SubItems.Add("数据库丢失");
                    }
                    item.SubItems.Add(act.Description);
                    item.SubItems.Add(act.FullPath);
                    listView1.Items.Add(item);
                }
            }
        }