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

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

3???app

4??????????

5??????????

????7?????2???? (????)“?????????????????????????????”??????2??????????????,“?”??7????6????7???????????20????????????21???????????????????

?????????????????40???????????????????,????????,????????

“?????”????,????? ?????? ?????????

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

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

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

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

“???????????????,??,?????????,??????,?????????????????????‘?????????????????????’?????????IP,??????????????????,??”????????????????????(???)

??:????