?? ?????????:60??????
![](https://image.chezhanri.com/2019/0517/20190517172608279.jpg)
????:1???????????:???????????
2??????????
3????????
4???app????
5??????????
?????????,???????????????????????????????,?????????,???,??????
?????“???”“???????????”“????????????????????”,???????,??????????????,?????????????????????
??????????,??????????????????????????????????????????,???????????????,?????????,???,?????????,????????????????????,??????
?????????????????,?????????,????????“????????????????”?
??????????????,??????????????????,???????,??,??????????????????????????????????
????:??????