The snack applet QR code made in school is well promoted, and it has been promoted to 511 people in two days. It can also be connected to a printer, and the list can be automatically printed out. It is really convenient for customers to place orders and remind them on the mobile phone. The page layout of the program is very concise, which is my favorite style, with complete functions, and I have to say that the business service is really good bit by bit.