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

2??????????????

3?py???????

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

5????????????

???:??,??,???“????????”???????????????102???,??????

???????????????????????30??????????,????????????????,??,?????????????????5808?????????????????????????

???????????????????????????????????,?????18%??????????????80%??,??????????????

????????????????????19.5????????????,??????????????????21?????????????????????????????????460??????????????,??90%,??????????51.2??“??????????”,????????????????75%??????????????

???????,???“??”??????????????,??????????????????????102.44??????????????????,??159.6???? ????:??????????????