List<cs_orders> orderlist = _ordersRepository.WhereLoadEntityEnumerable(p => p.order_status ==  && p.create_time.AddHours(expireHour) < now).ToList<cs_orders>();

 orderlist.ForEach(p => { p.order_status = ;
                        p.update_time = now;
                        p.update_remark += "-系统自动取消";
                        p.canel_case = "超时系统自动取消";
                        p.canel_time = now;
                        } );