Mcdonald's order (McD? Order), which is connected with the consumer's credit card or debit card. When consumers come to McDonald's and scan the QR code displayed in the store, it can automatically charge. Then, the phone will display the user's order number. Once ready, users can choose food and drinks at will without waiting in long lines or communicating with cashiers. At present, this app has appeared in the iOS and Android app stores, but it has not been publicly announced.