12306订票助手

怎么查询的时候多了个参数

/otsweb/order/querySingleAction.do?method=queryLeftTicket

 var queryLeftData = {
                            'orderRequest.train_date': $('#start_date').val(),
                            'orderRequest.from_station_telecode': $('#from_station_telecode').val(),
                            'orderRequest.to_station_telecode': $('#to_station_telecode').val(),
                            'orderRequest.train_no': $('#train_no').val(),
                            'trainPassType': 'QB',
                            'trainClass': 'QB#D#Z#T#K#QT#',
                            'includeStudent': 00,
                            'seatTypeAndNum': '',
                            'orderRequest.start_time_str': '00:00--24:00'
                        };

/otsweb/order/querySingleAction.do?method=queryLeftTicket&_='13位数字'

页面和12306的脚本都检查过 都没有看到加这个参数。