C#请求网页数据的方法

一直都是用unity的www请求网页数据，突然有一天需要用vs写一个程序，所以学习了一下怎么用vs的方法请求数据，亲测可用。

请求数据：

  /// <summary>
    /// 请求信息
    /// </summary>
    /// <param name="_url"></param>
    /// <param name="_outresult"></param>
    public void MRequestMessage(string _url, out string _outresult)
    {
        string result = null;
        try
        {


            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(_url);

            req.Method = "GET";

            req.ContentType = "application/octet-stream";

            HttpWebResponse res = (HttpWebResponse)req.GetResponse();

            Stream streamreceive = res.GetResponseStream();

            using (StreamReader streamreader = new StreamReader(streamreceive, Encoding.UTF8))
            {
                result = streamreader.ReadToEnd();
            }



            //Console.WriteLine("从网页请求到的数据:" + result);

        }
        catch (WebException e)
        {
            //result = e.Message;
            Console.WriteLine("M错误信息：" + e.Message);
        }

        _outresult = result;

    //简化版本
    //System.Net.WebRequest wr = System.Net.WebRequest.Create(TokenURL);
    //System.IO.Stream s = wr.GetResponse().GetResponseStream();
    //System.IO.StreamReader sr = new System.IO.StreamReader(s, System.Text.Encoding.Default);
    //PhotoToken = sr.ReadToEnd(); //读取网站的数据

    }

发送数据（暂没测试）：

 /// <summary>
        /// 发送数据
        /// </summary>
        /// <param name="_url"></param>
        /// <param name="_content"></param>
        /// <param name="_outresult"></param>
        public void MSendMessage(string _url, string _content,out string _outresult)
        {
            string result = null;

            try
            {
                HttpWebRequest req = (HttpWebRequest)WebRequest.Create(_url);

                req.Method = "POST";

                req.ContentType = "application/octet-stream";

                byte[] bytes = Encoding.UTF8.GetBytes(_content);

                req.ContentLength = bytes.Length;

                using (Stream streamsend = req.GetRequestStream())
                {
                    streamsend.Write(bytes, 0, bytes.Length);
                    streamsend.Close();
                }


                HttpWebResponse res = (HttpWebResponse)req.GetResponse();

                Stream streamreceive = res.GetResponseStream();

                using (StreamReader reader = new StreamReader(streamreceive, Encoding.UTF8))
                {
                    result = reader.ReadToEnd();
                }

                Console.WriteLine("提交数据后收到的数据:" + result);
            }
            catch(WebException e)
            {
                Console.WriteLine("M提交数据后错误信息：" + e.Message);
            }

            _outresult = result;

        }