.NET CORE获取远程服务器上面文件内容，并转换成流

  /// <summary>
        /// 获取远程服务器内容，并转换成流
        /// </summary>
        /// <param name="path">http://localhost:51573</param>
        /// <returns></returns>
        private MemoryStream GetUrlMemoryStream(string path)
        {

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(path);
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream responseStream = response.GetResponseStream();

            List<byte> btlst = new List<byte>();
            int b = responseStream.ReadByte();
            while (b > -1)
            {
                btlst.Add((byte)b);
                b = responseStream.ReadByte();
            }
            byte[] bts = btlst.ToArray();
            var ms = new MemoryStream();
            ms.Seek(0, SeekOrigin.Begin);
            ms.Write(bts);

            return ms;
        }