#region 下载

        /// <summary>

        /// 下载资源

        /// </summary>

        public void Download()

        {

                SaveFileDialog open = new SaveFileDialog();

                open.Filter = "*.xls;*.xlsx;*.xl;*.xlsn|*.xls;*.xl;*.xlsn;*.xlsx"; //保存图像类型

                string path = "http://192.168.3.63:9999/UpLoad/Default/案例.xlsx";

                Uri uri = new Uri(path);

                open.FileName = uri.Segments[uri.Segments.Length - ];

                DialogResult result = open.ShowDialog();

                if (!string.IsNullOrWhiteSpace(open.FileName) && result == DialogResult.OK)

                {

                    if (DownloadImage("http://192.168.3.63:9999/UpLoad/Default/案例.xlsx", open.FileName))

                    {

                        MessageBox.Show("下载成功！");

                    }

                }

        }

        /// <summary>

        /// 下载服务器文件至客户端

        /// </summary>

        /// <param name="urlString">被下载的文件地址，绝对路径</param>

        /// <param name="saveDir">另存放的目录</param>

        /// <returns>b</returns>

        public bool DownloadImage(string urlString, string saveDir)

        {

            WebClient client = new WebClient();

            FileStream fsStr = null;

            HttpWebResponse res = null;

            try

            {

                int n = urlString.LastIndexOf("/");

                string fileName = urlString.Substring(n + , urlString.Length - n - );

                //直接下载到桌面

                //client.DownloadFile(urlString, fileName);

                //下载到指定目录

                Stream stream = client.OpenRead(urlString);

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

                res = (HttpWebResponse)req.GetResponse();

                long len = res.ContentLength;

                BinaryReader r = new BinaryReader(stream);

                byte[] byteS = r.ReadBytes((int)len);

                fsStr = new FileStream(saveDir, FileMode.OpenOrCreate, FileAccess.Write);

                fsStr.Write(byteS, , (int)len);

                fsStr.Close();

                res.Close();

                stream.Close();

                return true;

            }

            catch (Exception err)

            {

                return false;

            }

            finally

            {

                if (fsStr != null)

                {

                    fsStr.Close();

                    fsStr.Dispose();

                }

                if (res != null)

                {

                    res.Close();

                }

            }

        }

        #endregion

#region 下载

        /// <summary>

        /// 下载图片

        /// </summary>

        /// <param name="path">下载路径</param>

        /// <param name="save">保存路径</param>

        //private void DownloadImage(string path, string save)

        //{

        //    Stream stream = null;

        //    if (path != null)

        //    {

        //        Uri uri = new Uri(path);

        //        try

        //        {

  //            if ("http".Equals(uri.Scheme, StringComparison.CurrentCultureIgnoreCase))

        //            {

        //                //如果是HTTP下载文件

        //                WebClient wc = new WebClient();

        //                stream = new MemoryStream(wc.DownloadData(uri));

        //            }

        //            else if ("file".Equals(uri.Scheme, StringComparison.CurrentCultureIgnoreCase))

        //            {

        //                stream = new FileStream(@path, FileMode.Open, FileAccess.Read);

        //            }

        //            //Image image = new Bitmap(stream);

        //            //mage.Save(save);

        //            MessageBox.Show("保存成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);

        //        }

        //        catch (Exception e)

        //        {

        //            System.Windows.MessageBox.Show(e.Message);

        //        }

        //    }

        //}

        #endregion