Quick Response Code is a way to link the extended plane media content to mobile websites. This black-and-white square "cipher" can not be understood by us, but it can be recognized by mobile phones, and tell the mobile phone all kinds of corresponding information. It can be printed on newspapers, magazines, advertisements, books, packages, and personal business cards. Mobile users can interpret the information in the QR code by taking pictures to recognize the QR code, which can complete many steps that are originally more complicated on the mobile phone. Including: writing text messages, inputting business cards, sending e-mails, writing texts (notes), surfing the Internet, downloading images and texts, music, videos, obtaining coupons, participating in lottery drawings, and understanding enterprise product information at any time.