/// <summary>
        /// 数据备份
        /// </summary>
        /// <param name="fr"></param>
        public string DateBackups(FormCollection fr)
        {
            bll.Errorlogbll errorlog = new bll.Errorlogbll();
            string          path     = "E:\\fabu\\ExcelFile\\database";

            if (!string.IsNullOrWhiteSpace(path))
            {
                mess = "";
                string DBPath;//备份成功后的文件在服务器的完全路径
                bool   bo = errorlog.DateBackups(path, out mess, out DBPath);
                if (bo)
                {
                    model.errorlog err = new model.errorlog()
                    {
                        ErrorMsg        = "备份数据库",
                        errorMsgDetails = "数据库备份",
                        errorSrc        = "ErrorloController.cs->DateBackups()",
                        errorTime       = DateTime.Now,
                        UserId          = userInfo.User.Id,
                        operation       = 2
                    };
                    errorlog.InsertErrorlog(err);

                    FileInfo   file = new FileInfo(Server.MapPath("~/ErrorlogPath.txt"));
                    FileStream sf   = file.Open(FileMode.OpenOrCreate);

                    StreamReader sr  = new StreamReader(sf, System.Text.Encoding.UTF8);
                    string       str = sr.ReadToEnd();
                    sr.Close();
                    str = DBPath.Replace(".bak", "") + "\r\n" + str;
                    StreamWriter sw = new StreamWriter(file.Open(FileMode.OpenOrCreate), System.Text.Encoding.UTF8);
                    sw.Write(str);
                    sw.Close();

                    return(bo.ToString() + "|" + DBPath);
                }
                else
                {
                    model.errorlog err = new model.errorlog()
                    {
                        ErrorMsg        = "备份数据库",
                        errorMsgDetails = mess,
                        errorSrc        = "ErrorloController.cs->DateBackups()",
                        errorTime       = DateTime.Now,
                        UserId          = userInfo.User.Id,
                        operation       = 2
                    };
                    errorlog.InsertErrorlog(err);
                    return(mess);
                }
            }
            //string st=  Server.MapPath("~/ErrorlogPath.txt");
            //FileInfo file = new FileInfo(st);
            // FileStream sf = file.Open(FileMode.OpenOrCreate);
            // StreamReader sr = new StreamReader(sf);
            // string str = sr.ReadLine();
            return("请输入文件路径!");
        }