{
Stream outstream = null;
Stream instream = null;
StreamReader sr = null;
HttpWebResponse response = null;
HttpWebRequest request = null;
// 要注意的这是这个编码方式,还有内容的Xml内容的编码方式
Encoding encoding = Encoding.GetEncoding("GBK");
byte[] data = encoding.GetBytes(url);
// 准备请求,设置参数
request = WebRequest.Create(url) as HttpWebRequest;
request.Method = "POST";
//request.ContentType = "text/plain";
request.ContentLength = data.Length;
outstream = request.GetRequestStream();
outstream.Write(data, 0, data.Length);
outstream.Flush();
outstream.Close();
//发送请求并获取相应回应数据
response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
instream = response.GetResponseStream();
sr = new StreamReader(instream, encoding);
//返回结果网页(html)代码
string content = sr.ReadToEnd();
return content;
}