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

2??????????

3???app????

4???????

5???????????

?????????????????????????????(???):??????????????????,??????????,????????,????????????

????????,????,????,???????????????????

????,??????????????????????????????,?????????????,???????????????????????????????,????,???????????60???,?????????

??,?????;????,?????????;?????????,????????????90%?

???,“????????”??????????????????????????????????,????????,60?????????????????34%,????????????????????????

??,????????????,????????,???6?????????????,??????????50%????,???“??”?????????,????????

?????????,2????5??????????,??????????????????????????????????????????24%? ???????:?????????