About Proxy

About Proxy

About Proxy

About Proxy

代理模式(Proxy)，為其它物件提供一種代理以控制對這個
物件的存取。
abstract class Subject
{
public abstract void Request();
}

class RealSubject : Subject
{
public override void Request()
{
Console.WriteLine(“Real Request”);
}
}

class Proxy : Subject
{
RealSubject realSubject;
public override void Request()
{
if (realSubject == null)
{
realSubject = new RealSubject();
}
realSubject.Request();
}
}

Client:
static void Main(string[] args)
{
Proxy proxy = new Proxy();
proxy.Request();

Console.Read();

}