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

2???????

3????????

4?????98??

5?????????APP

??????2??5?????????? (?????????? ????????)??5?????

???

????????????????????????:????????,??,?????????????????????????,???????????

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

??50????????????,?,????????,???,??????50???????,???????????????,????,???????????????,?????????????????,???,????,??????????????????????(??????????????) ???????????:??????