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

2???????

3???????

4????????app

5?????????????

??????11???22???(????)????????????????22????????,?????????????????????????????????????????????????7????,?“???”??????????????????????????“????????”?????????“??????????????????”???“????????????????”?

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

??,??????,????«????????»???????????????????????“????????????????????”??????????????10??,??????????????????????????“1(????)+N(??????)+X(??????)”???????????????????????????,???????????????????,????“??”??????????????????“????”?????????????????????“???????????”??????????“????”,??????

??????????????????,???,???????????????,????????????????????,?????????????????;?,????,??????????????????????????????,????

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

???:???