protected void Button1_Click1(object sender, EventArgs e)
        {
            try
            {
                string guid = Guid.NewGuid().ToString();
                if (null != _logger)
                {
                    _logger.InfoFormat("上传文件的大小为:{0}字节!", FileUpload1.PostedFile.ContentLength);
                }
                DateTime begin = DateTime.Now;

                IList <Byte[]> list = new List <byte[]>();
                list.Add(FileUpload1.FileBytes);
                list.Add(FileUpload2.FileBytes);
                list.Add(FileUpload3.FileBytes);
                list.Add(FileUpload4.FileBytes);
                list.Add(FileUpload5.FileBytes);

                string[] filename = { Tooklit.GetExtension(FileUpload1.FileName), Tooklit.GetExtension(FileUpload2.FileName),
                                      Tooklit.GetExtension(FileUpload3.FileName), Tooklit.GetExtension(FileUpload4.FileName), Tooklit.GetExtension(FileUpload5.FileName) };

                FastDFSClient.BatchUpload("test", list, filename);



                TimeSpan span = DateTime.Now - begin;
                //if (null != _logger)
                //    _logger.InfoFormat("上传文件Id为:{0}!路径为{1}!", guid, filePath);
                if (null != _logger)
                {
                    _logger.InfoFormat("上传文件的时间为:{0}秒!", span.TotalSeconds);
                }
                Response.Write("上传成功!");
            }
            catch (Exception exc)
            {
                Response.Write("上传失败!");
                if (null != _logger)
                {
                    _logger.ErrorFormat("测试文件上传速度时发生异常:{0}" + exc.Message);
                }
            }
        }