?? ??????????????:?????????? ???
![](https://image.chezhanri.com/2019/0828/20190828142552815.jpg)
????:1????????:??????
2???????
3???????
4??????????
5?????????
??8???????????16????????????????????????? ????????????????8????????16?????????,???????????????????,??
????????????????????????????:???????????????,?????????????????????????????
????????,??,??
???????????????????,??,?????????????????????????????????????????????????,??????????????? ?????:??????????????????????