public static void Main_Iterator()
{
var agg1 = new ConcreteAggregate1();
var agg2 = new ConcreteAggregate2();
var it1 = agg1.CreateIterator();
var it2 = agg2.CreateIterator();
//TOOD:统一方法遍历it1、it2
Console.ReadLine();
}
static void Main(string[] args)
{
Title.UpperIndent(Assembly.GetExecutingAssembly());
Client client = new Client();
var ag1 = new ConcreteAggregate1 <MenuItem>();
var ag2 = new ConcreteAggregate2 <MenuItem>();
client.Print(ag1);
client.Print(ag2);
client.Print(ag1);
Title.BottonIndent();
}