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

2?????????

3??????????????

4????????????

5?????app??

???11????????????25?????????????? (?????????????????)“????”“????”“???”……75???25???????????,??

????????????? ??????

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

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

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

25?????,?????????????????

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

??????????????“?????????????”??????,??????????,???“??????”????????,?????“????”“?”“??????????”3????????,??????????????????????????????????????????????????????????????????“????”?????????

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

????:??