If you have already applied for online banking, you can directly operate online, first open a fund account, and then you can buy funds. You can click on the purchase fund directly when operating. If you haven't opened a fund account before, the system will remind you to open a fund account first and follow the prompts to complete the operation step by step. In addition, I suggest you compare the rates of several banks when you buy a fund. Sometimes, the fees charged by the same fund in different banks are different.