ASP.NET读取RSS

从网上找的一段读取RSS的代码,经测能用: 

/// <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;
}