????:1?????????:?????v

2?????

3???app??

4?????????

5?????????

?1?????????????????4???? (?????????????????? ??????)“????? ?????????????????”??????????4?????????????

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

1?????4??,“???????????? ??”????????????????????(???? ???????????)

??,?????????????????????????????????????????,?????????????????????????????????10??,??????«??????????????????????»?,?????????

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

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

???????(??????? ??)

????????????????,??????????????????????,?????????,?,????????????????????????????????????????????????????????????????????????????????????????????????????50????????????,??,??????,????????

?????????????,??,??????,????“??”??????????????,????,???????????,??????,??????,???????????,??,?????????????(????????)

??:???