Colon in xml Resolve the problem of reading

Reference article: /quickstart/howto/doc/Xml/

The source code of the one:
        public void bindXml(string xmlUrl)
        {
             doc = new ();
            ( +"");
            //(xmlUrl);
            ("/rss/channel");
             root = ;
             xn = ("/rss/channel");
outStr += "Album name: " + ("title").InnerText;//Album name
outStr += "<br>Album url: " + ("link").InnerText;//Album url
outStr += "<br>Album pictures: <img src='" + ("image/url").InnerText + "' /";//Pictures on the homepage

            //outStr += "<br><img src='" + ("item")[0].SelectSingleNode("enclosure").Value + "'>";
             xnl = ("item");
outStr += "<br>Number of album pictures: " + () + "Zhang";

             nsmanager = new ();
            ("media", "/mrss/");

// Create a string containing the XPATH expression for calculation.
            string exprString = ("// {0}:group", "media");

             nodelist = (exprString, nsmanager);

            outStr += "<br>media:title:"+nodelist[0].SelectSingleNode("media:title",nsmanager).Attributes["type"].InnerText;





//            for(int i=0;i<;i++)
//            {
//                outStr += "<br> <img src='"+xnl[i].SelectSingleNode("enclosure").Attributes["url"].InnerText+"' />";
//            }
        }

I saw it at that time. . There is a colon in the xml of gg, so it will be solved by carding it. .
Pay the xml clip

- <media:group>
  <media:title type="plain"></media:title> 
  <media:description type="plain" /> 
  <media:keywords /> 
  <media:thumbnail url="/pengpengsay/R3C96dqJBUI/AAAAAAAAAEo/j3csPO0ig7o/s72/" height="48" width="72" /> 
  <media:thumbnail url="/pengpengsay/R3C96dqJBUI/AAAAAAAAAEo/j3csPO0ig7o/s144/" height="96" width="144" /> 
  <media:thumbnail url="/pengpengsay/R3C96dqJBUI/AAAAAAAAAEo/j3csPO0ig7o/s288/" height="192" width="288" /> 
  <media:content url="/pengpengsay/R3C96dqJBUI/AAAAAAAAAEo/j3csPO0ig7o/" height="400" width="600" type="image/jpeg" medium="image" /> 
<media:credit>Cheng Gang</media:credit>
  </media:group>

xml address: /pengpengsay/lNFxFK