string url = "http://localhost/login.uscmd";string indata = "username=12345678&password=123456";
string outdata = "";HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);
myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";
myHttpWebRequest.ContentLength = indata.Length;
myHttpWebRequest.Method = "POST";
myHttpWebRequest.CookieContainer = null;
Stream myRequestStream = myHttpWebRequest.GetRequestStream();
StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));
myStreamWriter.Write(indata);
myStreamWriter.Close();
myRequestStream.Close();HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
Stream myResponseStream = myHttpWebResponse.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("gb2312"));
outdata = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
Encoding.GetEncoding("gb2312") 是不是编码问题?