/// <summary>  /// 上傳ftp服務  /// </summary>  /// <param name="path">文件地址</param>  /// <returns></returns>  public string Upload(string path)  {   var client = new WebClient();   client.Credentials = new NetworkCredential("fptuser", "ftppwd");//用戶名和密碼   client.BaseAddress = "ftpurl";//ftp地址   string ftpPath = client.BaseAddress + "/TestFileUpLoad/" + Guid.NewGuid();//上傳fptp路徑   string returnPath = "";   try   {    client.UploadFile(ftpPath, path);    returnPath = ftpPath;   }   catch (Exception ex)   {    ///錯誤信息處理   }   return returnPath;  }