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

2???app????

3?????????????

4????????????

5???????

????????????11??????????22?? ?????????,?????????22??,?5.4???????????,???????????????“???”?

???????????????????,?22?18??45??20?22??20??????????40??20???43???21???29?,?20??????40?5.4??????????,??23.2?????????120.18?????,?????23.2?,??????????????????7.7??

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

?????,????“??”,?????“??????????????”?

??,22??20????40??4.7????????(???????) ??????:??