1. After registering and logging in, click the "course center" page at the bottom of the page to view all courses in the system. Click on the course to enter the course introduction page. If you need to buy, click "Add to Shopping Cart" or "Buy Now" button;
2. If you need to buy multiple courses, you need to choose the corresponding courses one by one to enter the shopping; If you need to modify the course in the shopping cart, you can click the "Edit" button to modify it;
3. After the course selection, enter the shopping cart for settlement.
4. After settlement, begin qualification education.
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