???????????????

????:??app:???????????

?6?15????? ??????????,????????????????6?????15????10??:??????,6?????????????15?????14??16?14??,????????????????????????????????????????????????????????????????????????,????,???????????????????????(100~200??)??(?30~50?????????????,???????70?????????),???????????????????????????

?????????????????

?????:

1???;

2??????,????;

3?????????????????????,??,????????????;

4????????????????,???????????????????

???:???