public JsonResult Del(string ids)
        {
            if (string.IsNullOrWhiteSpace(ids))
            {
                WorkContext.AjaxStringEntity.msgbox = "缺少参数";
                return(Json(WorkContext.AjaxStringEntity));
            }

            BLL.BLLSysDbBack bll      = new BLL.BLLSysDbBack();
            string           del_file = "";
            string           msg      = "";
            var is_ok = bll.Del(ids, out msg, out del_file);

            if (is_ok)
            {
                AddAdminLogs(Entity.SysLogMethodType.Delete, "删除备份的数据库:" + del_file);
                WorkContext.AjaxStringEntity.msg    = 1;
                WorkContext.AjaxStringEntity.msgbox = "删除成功";
            }
            else
            {
                WorkContext.AjaxStringEntity.msgbox = msg;
            }

            return(Json(WorkContext.AjaxStringEntity));
        }