static void Main(String[] args)
{
// 创建两个接口引用变量，接口引用可以引用任何实现该接口的类
IBankAccount vensusAccount = new SaveAccount();
ITransferAccount jupiterAccount = new GoldAccount();
vensusAccount.PayIn(200);
jupiterAccount.PayIn(500);
// 实现jupiterAccount向venusAccount账户转账
jupiterAccount.TransferTo(vensusAccount, 100);
Console.WriteLine(vensusAccount.ToString());
Console.WriteLine(jupiterAccount.ToString());
Console.Read();
}
static void Main(String[] args)
{
// 创建两个接口引用变量，接口引用可以引用任何实现该接口的类
IBankAccount vensusAccount = new SaveAccount();
IBankAccount jupiterAccount = new GoldAccount();
vensusAccount.PayIn(200);
vensusAccount.WithDraw(100);
Console.WriteLine(vensusAccount.ToString());
jupiterAccount.PayIn(500);
jupiterAccount.WithDraw(600);
jupiterAccount.WithDraw(100);
Console.WriteLine(jupiterAccount.ToString());
Console.Read();
// 创建接口数组，其中每个元素都是不同的类
IBankAccount[] accounts = new IBankAccount[2];
accounts[0] = new SaveAccount();
accounts[1] = new GoldAccount();
}
