Design Patterns 10 - 模板方法模式

abstract class AbstractClass {
    public abstract void PrimitiveOperation1();
    public abstract void PrimitiveOperation2();

    public void TemplateMethod() {
        PrimitiveOperation1();
        PrimitiveOperation2();
    }
}
class ConcreteClassA : AbstractClass {
    public override void PrimitiveOperation1() {
        // todo
    }

    public override void PrimitiveOperation2() {
        // todo
    }
}

class ConcreteClassB : AbstractClass {
    public override void PrimitiveOperation1() {
        // todo
    }

    public override void PrimitiveOperation2() {
        // todo
    }
}

public static void Main(string[] agrs) {
    AbstractClass c;

    c = new ConcreteClassA();
    c.TemplateMethod();

    c = new ConcreteClassB();
    c.TemplateMethod();    
}