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

2?????????????

3??????????

4????app

5????????

??????????2??????????????????14? (????????????? ??????)????????14???????????????????????????????,?????,????????????

???????,???,??,??,???????????????????????,?????????????????????,???“????”??????????“???”?????????????????????

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

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