Answer: To generate the QR code of the poster of Beizhi, you can follow the following steps: 1 First, you need to find the poster that you want to generate the QR code in official website, Beizhi. 2. Then, click the "Share" button in the upper right corner of the poster. 3. In the sharing window that pops up, find and click the "Generate QR code" option. 4. The system will automatically convert the poster into a QR code and generate a link or copy it to the clipboard for your use. 5. You can choose to view the QR code directly on the web page, or save it to a mobile phone photo album or other applications. Explanation: The process of generating a poster QR code is actually to convert the contents of the poster into a unique QR code, which can be stored in the QR code. When you scan this QR code, the scanning software on your mobile phone will recognize the information in the QR code and display it as the content of the poster. In this way, you can share the poster to social media, websites or other platforms to let more people see it. Extended content: Besides official website, you can also generate poster QR codes through other channels. For example, you can use some online QR code generation tools, such as grass QR code, Liantu.com and so on. These tools usually provide a wealth of templates and design options to help you create more attractive QR codes. When using these tools, just upload your poster pictures to the platform, and then set the relevant parameters of the QR code according to the prompts, such as color, size, fault tolerance rate and so on. Finally, click the Generate QR code button to get a unique poster QR code.