| 摘要 |
A POS machine and a POS machine card-payment system and a card-payment transaction method thereof. The POS machine card-payment system can select merchant information by selecting a product or a merchant and download the merchant information in a database to a POS machine terminal, and thus enable the POS machine terminal to perform card-payment operation based on the downloaded merchant information, thereby achieving the function that a plurality of merchants share a POS machine terminal to perform card-payment operation, and the merchant information can be added, deleted and modified by the card-payment system, thereby achieving the purpose of freely expanding the number of merchants. |
