public void TestMethod()
{
IHandler handler1 = new InternalHandler();
IHandler handler2 = new DiscountHandler();
IHandler handler3 = new MailHandler();
IHandler handler4 = new RegularHandler();
//组合链式结构
//internal->mail->discount->retular->null
handler1.Successor = handler3;
handler3.Successor = handler2;
handler2.Successor = handler4;
IHandler head = handler1;
Request request = new Request(20, PurchaseType.Mail);
head.HandleRequest(request);
Console.ReadLine();
}
public void TestMethod()
{
IHandler handler1 = new InternalHandler();
IHandler handler2 = new DiscountHandler();
IHandler handler3 = new MailHandler();
IHandler handler4 = new RegularHandler();
//组合链式结构
//internal->mail->discount->retular->null
handler1.Successor = handler3;
handler3.Successor = handler2;
handler2.Successor = handler4;
IHandler head = handler1;
Request request = new Request(20, PurchaseType.Mail);
head.HandleRequest(request);
Console.ReadLine();
}