?? ????????:???“??”????
![](https://image.chezhanri.com/2019/0510/20190510145339955.jpg)
????:1???????:????????????
2?????app???
3?????????
4???????????
5?????
7??16?8??15??????????????????,??“?”???????????????????????,???????,??????????“???”??,?,???
??,????“??”??“?????”????“??”???“??????????????????”????,??????????????????????????????????20?????;?????????,??2????????????????????????1???????????,??????????????1?2?,???????????
???,“??????”?????????????,??,??????,??????????“??????????”??,??????????????????,??????????,?,??????????????7??16???0??????????,???,????“??????????”????????,??????“????”?????????????,??,?????
(????? ? ?????) ????:??????????