????:1????????????:?????????????

2????????

3?????????

4?????????

5??????????

?????????9???????????5??????????? (??? ??? ?)??,?“???”????,???????,???9?5??,??????????????????????????????????????????

??????9????????????5???????????15????,????????????:

9?5??18?7????????,????

9??5?18?7??,??

9???5????????????????????????????,???????????

9??5???7???????????,??

9?6????????7?,????????????????????????????????????????????????,??

9??5??????7?????????????????,?????

???????,????????????????12306??,??30?????(??),?????????12306??(12306????APP)?,????????????????????180????????????????(?),???,???(??????????) ??:???