C#寫一個URL編碼轉換GB23121的方法,然後可以取到天氣預報

  /// <summary>

  /// 根據城市取得天氣預報資訊

  /// </summary>

  /// <param name="ps_CityName">城市中文名稱 如:福州</param>

  /// <returns></returns>

  public static string GetSinaWether(string ps_CityName)

  {

   string strCity = StrConv(ps_CityName,"GB2312");

   

   //string myuri="http://appnews.qq.com/cgi-bin/news_qq_search?city="+city;

   string myuri="http://weather.news.sina.com.cn/cgi-bin/figureWeather/simpleSearch.cgi?city="+strCity;   

   WebRequest webr=WebRequest.Create(myuri);

   

   Stream rc=webr.GetResponse().GetResponseStream();

   

   StreamReader read=new StreamReader(rc,System.Text.Encoding.Default);

   string abc=read.ReadToEnd();

   int l1=abc.IndexOf("今日天氣");

   string restr="<font face=黑體 style=font-size:18px;>"+abc.Substring(l1).Replace("<br>","").Replace("<td style=","").Replace("class=l15>","").Replace("color:#083887","").Replace("</td>","").Replace("</tr>","").Replace("</table>","").Replace("</body>","").Replace("</html>","");

   return restr.Replace("50","20");

  }

  /// <summary>

  /// 根據城市取得天氣預報資訊

  /// </summary>

  /// <param name="ps_CityName">城市中文名稱 如:福州</param>

  /// <returns></returns>

  public static string GetQQWether(string ps_CityName)

  {

   string strCity = StrConv(ps_CityName,"GB2312");

   

   string myuri="http://appnews.qq.com/cgi-bin/news_qq_search?city="+strCity;

   WebRequest webr=WebRequest.Create(myuri);

   

   Stream rc=webr.GetResponse().GetResponseStream();

   

   StreamReader read=new StreamReader(rc,System.Text.Encoding.Default);

   string abc=read.ReadToEnd();

   return abc;

  }

  /// <summary>

  /// 編碼轉換

  /// </summary>

  /// <param name="strIn"></param>

  /// <param name="encoding"></param>

  /// <returns></returns>

  public static string StrConv(string strIn, string encoding)

  {

   return System.Web.HttpUtility.UrlEncode(strIn,System.Text.Encoding.GetEncoding(encoding));

  }