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

2???????app

3???????

4??????

5??????????

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

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

????????????????:???