1. On the main page of Alipay, find the wealth option at the bottom of the page, and then click Enter.

2. After entering the wealth interface, find the "Fund Bar" option and click Enter.

3. After entering the fund page, find and click "Hold" in the lower right corner.

4. In the new page, find and click a fund to continue buying.

5. After entering the fund details page, find and click or make a fixed investment. If you want to sell, you can click "sell/convert".