?? ???? ???????????“?????”
????:1?300?3????????:??????
2?????????
3???????
4???????????
5?????
?,?????????,??????????????“??????????????”,???
?????????????,???????????,???????????????????,???POS?????
?????????,????????POS???????????????
?????,??????????????,?,????????????
????,??????????POS????????????,?????????????
???? ?????????????????????? ???? ???????
???:?????????????????????