用HttpWebRequest写的一个天气预报小偷（转）

（１）引用ＱＱ：
http://www.freezg.com/weather 

代码如下

  private void GetWeather()
  {
   HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://weather.news.qq.com/inc/dc189.htm");
   request.Method = "Get";
   request.ContentType = "application/x-www-form-urlencoded";
   WebResponse response = request.GetResponse();
   Stream s = response.GetResponseStream();
   StreamReader sr = new StreamReader(s,System.Text.Encoding.GetEncoding("GB2312"));
   string html = sr.ReadToEnd();
   s.Close();
   sr.Close();
   Response.Write(html.Replace("/images/","http://weather.news.qq.com/images/"));
  }

还要引用这两个名称空间
using System.Net;
using System.IO;


（２）
引用新浪天气预报
private void Page_Load(object sender, System.EventArgs e)
 {
  HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://weather.sina.com.cn/iframe/weather/210201_w.html");
  request.Method = "Get";
  request.ContentType = "application/x-www-form-urlencoded";
  WebResponse response = request.GetResponse();
  Stream s = response.GetResponseStream();
  StreamReader sr = new StreamReader(s,System.Text.Encoding.GetEncoding("GB2312"));
  string html = sr.ReadToEnd();
  s.Close();
  sr.Close();

  int start = html.IndexOf("<br>");
  html = html.Substring(start + 4);

  int end = html.IndexOf("</td>");
  html = html.Substring(0,end);

  htmResult = html;

}