???:????
??“??app”????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
??????????????|???? ??????
??????????????|???? ??????
??
????:
1???app:????
2???????????
3???????????
4?????90?????
5????????????
???:????
????
6
%
???:??