When you swipe your card, the electronic receipt given by the store shows the price of Portuguese currency you consumed at that time, that is, the marked price of the goods. Swipe your card at this price, and then the system will automatically convert it into RMB for deduction at the exchange rate of the day. If you have account opening information, you will receive the deducted RMB amount immediately. General consumption can be realized by credit card, the foreign exchange conversion rate is good, and there are credit card points. In addition to taking a taxi to eat fast food, Macau can even buy something with a credit card of 7- 1 1, which is convenient and affordable.