static string GetHTML()
{
string url = "http://flights.ctrip.com/booking/bjs-sha----adu-1/";
string param = "dayoffset=3&ddate1=2013-01-18&dcityname1=%u5317%u4eac&acityname1=%u4e0a%u6d77";
Uri uri = new Uri(url);
WebRequest myReq = WebRequest.Create(uri);
myReq.Method = "Post";
myReq.Headers.Add("Accept-Encoding", "gzip,deflate,sdch");
byte[] byData = Encoding.Default.GetBytes(param); //獲取發送字符串編碼後的長度
myReq.ContentLength = byData.Length;
Stream reqStrem = myReq.GetRequestStream(); //返回請求流
reqStrem.Write(byData, 0, byData.Length); //在返回的請求流在寫入編碼後的長度
reqStrem.Close();
WebResponse result = myReq.GetResponse(); //返回響應
Stream recStream = result.GetResponseStream(); //返回響應流
//如果是Gzip方式則需要解壓
recStream = new GZipStream(recStream, CompressionMode.Decompress);
//初始化StreamReader
StreamReader redStream = new StreamReader(recStream, System.Text.Encoding.Default);
string strHTML = redStream.ReadToEnd(); //讀取流。轉換爲字符串
redStream.Close();
recStream.Close();
result.Close();
return strHTML;
}