设计模式：模板方法

namespace TemplateMethod
{
    public abstract class AbstractClass
    {
        public abstract void PrimitiveOperation1();
        public abstract void PrimitiveOperation2();
        public void TemplateMethod()
        {
            PrimitiveOperation1();
            PrimitiveOperation2();
            Console.WriteLine("");
        }
    }
    public class ConcreteClassA:AbstractClass
    {
        public override void PrimitiveOperation1()
        {
            Console.WriteLine("具体类A方法1实现");
        }
        public override void PrimitiveOperation2()
        {
            Console.WriteLine("具体类A方法2实现");
        }
    }
    public class ConcreteClassB : AbstractClass
    {
        public override void PrimitiveOperation1()
        {
            Console.WriteLine("具体类B方法1实现");
        }
        public override void PrimitiveOperation2()
        {
            Console.WriteLine("具体类B方法2实现");
        }
    }
}

            AbstractClass ac;
            ac = new ConcreteClassA();
            ac.TemplateMethod();
            ac = new ConcreteClassB();
            ac.TemplateMethod();