winform中要上传文件到远程的服务器上面，我在本地用的是post方式传递数据，用的是HTTP协议，具体代码如下： 下面的代码就是一个上传的方法，参数需要路径和文件路径就可以了，我本地winform只需要提交post请求就可以了，止于对于post请求如何处理，那就是远程服务端的事情了。 private string uploadFile(string uriAddress, string uploadfilePath) { HxSpecCore.SpectrumSet ss = new SpectrumSet(); try { // 设置提交的相关参数 HttpWebRequest request = WebRequest.Create(uriAddress) as HttpWebRequest; Encoding myEncoding = Encoding.UTF8; request.Method = "POST"; WebHeaderCollection headers = request.Headers; //提交请求数据 FileInfo fi = new FileInfo(uploadfilePath); FileStream fs = new FileStream(uploadfilePath, FileMode.Open, FileAccess.Read); byte[] postData = new byte[(int)fs.Length]; request.Headers.Set("md5data", Convert.ToBase64String(GetMD5(Convert.ToBase64String(GetMD5(Encoding.Default.GetString(postData))) ))); fs.Read(postData, 0, Convert.ToInt32(fs.Length)); fs.Close(); System.IO.Stream outputStream = request.GetRequestStream(); outputStream.Write(postData, 0, postData.Length); outputStream.Close(); HttpWebResponse response; Stream responseStream; response = request.