?? ???? ???????????“?????”
????:1????????????:????????
2???????
3????????????
4??????????
5???2021??
????,???,??????????????“??????????????”,?????????????
????,????,???????????,??????????POS?????????????
???,?????????????????????POS?????
?,???,?????????????,?????????????
??????????????,???????????POS?????,????????????????????
?? ????????? ??????????? ??????????????????????
????:?????????