1. First, find the official website of Walnut Programming or Guagua Programming, or scan the QR code to follow the WeChat official account of "Walnut Programming" or "Guagua Programming".
2. Next, open the official website of Walnut Programming or Guagua Programming, wait for 2 seconds, and the customer service dialog box will pop up automatically.
3. Finally, you can register directly by explaining the request to customer service, and fill in your personal information to join the programming course.