The main functions of QR (Code Generator & Scanner) products include: 1. Generate two-dimensional code: QR (Code Generator & Scanner) can automatically generate the corresponding QR code according to the information entered by the user. 2. Scan the QR code: QR (Code Generator & Scanner) can scan and read the information in the code through mobile phones and other devices. 3. Share QR code: QR (Code Generator & Scanner) can share the generated QR code to social media, email and other platforms, so that users can share information with others. Advantages of QR (Code Generator & Scanner): 1. Efficiency: QR codes can store a large amount of information, and QR (Code Generator & Scanner) scans QR codes very quickly, which can improve work efficiency. 2. Customizability: QR (Code Generator & Scanner) can be customized according to the needs of users. 3. Easy to disseminate: QR codes can be disseminated through social media, email and other platforms, which is convenient for users to share information with others. In short, QR (Code Generator & Scanner) is a powerful and widely used solution that can help enterprises, schools, hospitals and other institutions to make better use of QR codes, improve work efficiency, and provide better services.