First, buy a large amount of initial funds in the bank, and exchange 654.38+0,000 or 500,000 fund net values for fund shares. That is, a fund changed a basket of stocks. When you redeem it, you get a basket of stocks, not cash.
Second, it is very simple to buy in a securities company. Just like buying stocks, it takes the same time and cost to sell at least 100 ETF funds and stock trading.