static void Main()
{
// 初始化用户信息
DepositCard depo = new DepositCard(10000);
CreditCard cred = new CreditCard(9, 5000, 100);
Accounts accounts = new Accounts(depo, cred);
Client client = new Client("Hazel", accounts);
// 委托类实例化
Delegate repayDelegate = new Delegate();
// 进入菜单
Menu menu = new Menu();
menu.HomePage(client, repayDelegate);
}
// 账户类构造函数
internal Accounts(DepositCard deposit, CreditCard credit)
{
depo = deposit;
cred = credit;
}