?? ???????????????????
![](https://image.chezhanri.com/2019/0424/20190424171847969.jpg)
????:1????????????:??????
2?????????????
3???????
4????????????
5???app????????
???????????????6?????????????19??????????? ???????????,??,?????????????????
??????,?????,?????????,????,??????,??????,???????????????,?????????,??;??????,????;??,??????????;????????????????????????????;????????,???????????????,????????????
????????????????????????,???????????????????????????????????????,???????????????????,??????,????????????????,?????????????????????????????????«????»«??????????»«??»??????????????????????,????????,?????;??????;???;?????,??????????(?)
?????????????:????????????????