RSS读取文章

/// <summary>
    /// 加载RSS
    /// </summary>
    /// <param name="RssUrl">RSS地址</param>
    /// <param name="RssCount">要提取的文章数量</param>
    /// <returns></returns>
    public string LoadRSS(string RssUrl, int RssCount)
    {
        XmlDocument doc = new XmlDocument();
        string Rss = "";
        if (RssUrl != "")
        {
            try
            {
                doc.Load(RssUrl);
                XmlNodeList nodelist = doc.GetElementsByTagName("item");
                XmlNodeList objItems1;
                int i = 1;
                if (doc.HasChildNodes)
                {
                    foreach (XmlNode node in nodelist)
                    {
                        string title = ""; // 文章标题
                        string link = "";  // 链接
                        string content = ""; // 内容
                        string createDate = ""; // 发表时间
                        i += 1;
                        if (node.HasChildNodes)
                        {
                            objItems1 = node.ChildNodes;
                            foreach (XmlNode node1 in objItems1)
                            {
                                switch (node1.Name)
                                {
                                    case "title":
                                        title = node1.InnerText;
                                        break;
                                    case "link":
                                        link = node1.InnerText;
                                        break;
                                    case "description":
                                        content = node1.InnerText;
                                        break;
                                    case "pubDate":
                                        createDate = node1.InnerText;
                                        break;
                                }
                                if (title != "" && link != "")
                                    break;
                            }
                            Rss += "<a href='" + link + "' target='_blank'>" + title + "</a> 发表于 " + createDate + "<hr/>";
                            Rss += content;

                        }
                        if (i > RssCount)
                            break;
                    }
                }
            }
            catch (Exception)
            {
                Rss = "RSS Feed 源数据出错！";
            }
        }
        else
        {
            Rss = "未找到信息源，您可刷新重试或联系管理员！";
        }
        return Rss;
    }