2. After entering the login interface, click on the left navigation bar and click on the online course catalog to find the course you need to study.
3. Click on the course, and after the page jumps, click the Buy Now button.
4. In the pop-up message prompt, reconfirm whether it is a course to be studied, and click OK.
5. The page jumps to the purchase information confirmation interface, and after checking the information, click Submit Order.
6. The page jumps to the payment order interface, and click OK to pay.
7. In the pop-up payment interface, you can complete the payment by scanning the QR code with the mobile phone WeChat.