GET请求时，给文件加请求头信息

/// 

        /// GET请求时，给文件加请求头信息
        /// 
        /// 
        /// 
        public static string myGetWebContent(string myUrl, string charset)
        {
            //HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create(url);
            //myReq.Method = "GET";
            //myReq.Headers.Add("Authorization", "值");
            //HttpWebResponse res = (HttpWebResponse)myReq.GetResponse();
            //res.GetResponseStream();
            if (charset == "") charset = "utf-8";
            WebRequest request7 = WebRequest.Create(myUrl);
            request7.Method = "GET";
            //post传参数  
            //string postdata = "LoginName=test";
            //byte[] bytes = Encoding.ASCII.GetBytes(myPara);
            //request7.ContentType = "application/x-www-form-urlencoded";
            request7.Headers.Add("Authorization", "值");
            //request7.ContentLength = myPara.Length;
            //Stream sendStream = request7.GetRequestStream();
            //sendStream.Write(bytes, 0, bytes.Length);
            //sendStream.Close();

            //得到返回值   
            WebResponse response7 = request7.GetResponse();
            string OrderQuantity = new StreamReader(response7.GetResponseStream(), Encoding.GetEncoding(charset)).ReadToEnd();
            return OrderQuantity;

        }

原帖参考：https://bbs.csdn.net/topics/390588474