First, you should open an agreement account of the fund. As for the rate, you can see the purchase rate when you choose to buy, which is 1 under normal circumstances. 5 percentage points, but online banking subscription can be cheap, some 20% off, some 60% off, depending on whether the bank has activities. There are other ways, that is, go directly to the bank to buy, just bring your ID card and bank card, but the rate is higher, redemption is slower than online banking, and it is also possible to buy it at a securities trading institution.