static void Main(string[] args)
{
// 定义外部状态，例如字母的位置等信息
int externalstate = 10;
string[] strings = new[] { "A", "B", "C", "D" };
Random random = new Random();
FlyweightFactory factory = new FlyweightFactory();
for (int i = 0; i < 10; i++)
{
var s = strings[random.Next(4)];
Flyweight fd = factory.GetFlyweight(s);
if (fd != null)
{
fd.Operate(--externalstate);
}
else
{
Console.WriteLine("{0}加入驻留池", s);
factory.Flyweights.Add("D", new ConcreteFlyweight(s));
}
}
Console.ReadKey();
}
