利用HttpWebRequest上传数据

HttpWebRequest myRequest = WebRequest.Create("www.sina.com.cn") as HttpWebRequest; //上传数据 string postData = "测试数据"; ASCIIEncoding encoding = new ASCIIEncoding(); byte[] datas = encoding.GetBytes(postData); myRequest.ContentType = ""; myRequest.Method = "post"; myRequest.ContentLength = postData.Length; Stream str = myRequest.GetRequestStream(); str.Write(datas, 0, datas.Length);