获取网站的RSS聚合到自己的网页

　　想把别的网站的RSS新闻整合到自己的网页，刚学，一直都不会。今天终于成功了！可能这个方法有点笨！思路是把XML文件下载到本地，然后再读本地XML，就简单了！不知道是否有更简单的方法，希望高手赐教！

核心代码如下：
（用webRequest得到指定页的内容，然后用FileStream写到本地文件中）
核心部份（下载RSS链接的XML文件到本地！）
 
       private void download_Click(object sender, System.EventArgs e)
                {
                        Encoding sjis = Encoding.GetEncoding("utf-8");
                        FileStream fs = new FileStream(Server.MapPath(".")+"\\sina.xml",FileMode.Create,FileAccess.Write);
                        //建立StreamWriter为写做准备
                        StreamWriter rw = new StreamWriter(fs,sjis);
                       
                        string rl;
                                //创建WebRequest对象
                                WebRequest myReq = WebRequest.Create("http://rss.sina.com.cn/news/marquee/ddt.xml");//读取远程文件(新浪新闻)，然后用FileStream将文件保存到本地！
                                //创建WebResponse对象
                                WebResponse myRes = myReq.GetResponse();
                                //获取Stream
                                Stream resStream = myRes.GetResponseStream();
                                //以下操作为读取Stream对象中的内容
                                StreamReader sr = new StreamReader(resStream,sjis);
                                StringBuilder sb = new StringBuilder();
                                while((rl=sr.ReadLine())!=null)
                                {
                                        rw.WriteLine(rl);                                       
                                }                               

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