?? ?????????????????????????
![](https://image.chezhanri.com/2020/0326/515e7d5114b7d88ff8fb3e72edddcf58.jpg)
????:1?????:???app
2???????
3?????????
4????????
5???????
??????7????????????????12?????? ??,????,???,??????????????????
??????????????????????????,?????????,??????????????,???????????????????????????????,??????;????????????????????,??????;??,????;????,???????;?????????,??????????,?????????????????????????????????????????????????,????
??????????????????????????????????,???????????,????????,???????????,??,???????????«??????»«?????????????»«????»??,?????,?????;?????????;??????????????????;????,???????????
???:??????????????