复制usingSystem.Collections.Generic;   usingSystem;   usingSystem.Net;   usingSystem.Xml.Linq;   usingSystem.Linq;   usingSystem.Windows;   usingMicrosoft.Maps.MapControl;   namespaceGeoRss.Map.GeoRssUtils   {   publicdelegatevoidDownloadGeoRssCompletedEventHandler(List<GeoRssItem>items);   publicdelegatevoidDownloadGeoRssExceptionEventHandler(Exceptione);   publicclassGeoRssReader   {   publicGeoRssReader()   {   wc=newWebClient();   wc.DownloadStringCompleted+=WebClientDownloadGeoRssCompleted;   }   publicGeoRssReader(Uriuri)   :this()   {   this.uri=uri;   }   publicGeoRssReader(Uriuri,间应间数据DownloadGeoRssCompletedEventHandlerevh)   :this(uri)   {   DownloadGeoRssCompleted+=evh;   }   publicUriuri{get;set;}   publiceventDownloadGeoRssCompletedEventHandlerDownloadGeoRssCompleted;   publiceventDownloadGeoRssExceptionEventHandlerDownloadGeoRssException;   publicvoidReadAsync()   {   if(DownloadGeoRssCompleted.Target!=null)   {   wc.DownloadStringAsync(uri);   }   }   #region_private   privatereadonlyWebClientwc;   privatevoidWebClientDownloadGeoRssCompleted(objectsender,DownloadStringCompletedEventArgse)   {   try   {   XNamespacensXml="http://www.w3.org/2005/Atom";   XNamespacensGeorss="http://www.georss.org/georss";   XNamespacensGeo="http://www.w3.org/2003/01/geo/wgs84_pos#";   XNamespacensMedia="http://search.yahoo.com/mrss/";   varitems=fromiteminXElement.Parse(e.Result).Descendants("item")   selectnewGeoRssItem   {   Title=(item.Element("title")!=null)?item.Element("title").Value:null,   Link=(item.Element("link")!=null)?item.Element("link").Value:null,   Description=(item.Element("description")!=null)?item.Element("description").Value:null,   PubData=(item.Element("pubDate")!=null)?item.Element("pubDate").Value:null,   Locatios=ParserLocations(XElement.Parse(item.LastNode.ToString().Replace(":","X")).Value)   };   if(DownloadGeoRssCompleted.Method!=null)   {   DownloadGeoRssCompleted.Invoke(items.ToList());   }   }   catch(Exceptionex)   {   if(DownloadGeoRssException.Method!=null)   {   DownloadGeoRssException.Invoke(ex);   }   else   {   throw;   }   }   }   privateLocationCollectionParserLocations(stringpoints)   {   LocationCollectionlc=newLocationCollection();   string[]ps=points.Split();   for(inti=0;i<ps.Length;i+=2)   {   lc.Add(newLocation(double.Parse(ps[i]),double.Parse(ps[i+1])));   }   returnlc;   }   #endregion   }   }  1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.67.68.69.70.71.72.73.74.75.76.77.78.79.80.81.82.83.84.85.86.87.

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