?? ??????? ???????????
????:1?????????:????
2????????????
3????????
4??????????app??
5?????????
??????????????1?????30??? (??? ???????)?????1???30??(????)??????,??????«?»???,????
1????????????????30???,??????????«???????»???(??? ??)????????????????????,“?????,?”??“??”?????????????????????????“???”?,????,???????????????????
?,??50?????????????,??
?????????«???»??????????????(????? ??)?«????????»,????????“?????”???????????????,?????????????????????????????,????,????????“?????”????????????????
???????,1???????????????31??????????,???«????»?????,?????????????????????????????????????
???1?????????????????????30????6????????????????????????,?????????????????????????????,??(????????)
????:????