????:1??????50?:????vx

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

3?????spa

4?????????

5???????

?????????,????,??????NFC??,???“???????????????????”NFC(?????????????)????????????????,???????????????????????,????????,??,???,?????

???,?????????????????????????????????????,?????????????,???????NFC?????????????

????,??,“??”??????,????????,????????

(????? ????????? ???????????????? ?????????)

??????????:????