?? ?????????“??????????”???
????:1?????:????
2??????????
3???app??
4???????
5????????zj
?????,???,????“????”??????????????????????????????????????????????,?????????,????
???????,???????“??????????”?????,?????????????????“?????”?????????????????????????????????????,??????“???”???????
????,???“????????????”?“????????????????????”???,????2000???????????????????????
????? ???????????????????????? ?????? ???
???????:????