public class BankAccountTest {
    public static void main(String[] args) {
        BankAccount account = new BankAccount("6222021234567890123", "张三");
        account.deposit(1000);
        account.withdraw(300);
        System.out.println("户主姓名：" + account.getOwnerName());
        System.out.println("当前余额：" + account.getBalance());
        account.setOwnerName("李四");
        System.out.println("修改后户主姓名：" + account.getOwnerName());
    }
}