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

2?????????

3?????FJ?

4?????????

5???app????

6??,??,????????,???“?????????”,??

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

????????6??29???????9??????????,?????????20????????????????,7???????8????????????????????????,?????,??????????????,????,?????????,????,????,?????????????????????????????

??????,?????????????,???????????????????????,??????????,????,??,?4000??????????3.7?????,??????????????????????????????????????????????,??????????????????,????????????????????,????????????,???????????????,??“??????”,????????????????“?????????”,???“???”?

???????

?????

?????????

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