2. Then click "Wallet" in the next interface, and click "Bitcom" to enter Bitcom, where you can see your account balance and the funds currently purchased.
3. Then click on the three points in the upper right corner and select "Fund Details" in the pop-up options.
4. You can see the option of "changing funds" in the next interface. Click on it to choose the fund you want to buy.
5. Select and click "Read and agree to the service agreement and risk warning" in the drop-down screen, and then click "Replace".