1. Use the QR code generator on the website: Many websites provide free QR code generation tools. You can enter the required information on these websites, such as text, links, images, etc. , and then generate a QR code and download and save it.
2. Generate applications with QR codes: Many applications can generate QR codes. For example, applications such as WeChat and Alipay all provide the function of generating QR codes. You can enter the required information in the application, and then generate the QR code and save it.