/// <summary>
        /// 根据List of FeedBase 更新频道列表显示
        /// </summary>
        internal void UpdateFeedsView()
        {
            tvMain.BeginUpdate();
            tvMain.Nodes.Clear();
            foreach (RssFeed feed in pm.Profile.Feeds)
            {
                TreeNode feedNode = new TreeNode(feed.DisplayName);
                feedNode.ContextMenuStrip = this.cmsFeeds;请问怎么弄?
                tvMain.Nodes.Add(feedNode);                if (feed.Articles != null)
                {
                    foreach (Article atcl in feed.Articles.Values)
                    {
                        TreeNode atclNode;
                        atclNode = feedNode.Nodes.Add(atcl.Title);
                    }
                }
            }            tvMain.EndUpdate();
        }