设计模式之C#实现(一)--AbstractFactory[10]

private void form1_load(object sender, system.eventargs e) {

                     this.richtextbox1.clear();

                     iabstractfactory factory1 = new concretefactory1();

                     iabstractproducta a = factory1.createproducta();

                     iabstractproductb b = factory1.createproductb();

                     this.richtextbox1.appendtext(a.showself()+"\n");

                     this.richtextbox1.appendtext(b.showself()+"\n");