What I understand is that a bank card has only one fund account (deposit account), and the other is a t a account, that is, the bank transfers your deposit to the fund company. To put it bluntly, it is the card number of the transfer. You must sign a fixed investment agreement or purchase agreement with the bank, and there must be enough money in the card. If it is not enough, you must deposit money in it. The bank transfers your money to the fund company, and the fund company invests your money (depending on what kind of funds and stocks you invest in), and you have to take the money out. This is called fund redemption. Just cancel the contract at the bank. Telephone banking, mobile banking, online banking and even bank self-service machines can be used. However, stock funds and partial stock funds need about a week (note: overseas funds need about ten days), and the time for debt-based and goods-based funds is even shorter. After redemption, the foundation will rise or fall according to the type of your investment.