桥接模式

桥接模式：将对象部分与它的实现部分分离，使它们可以独立的变化。

结构图：

 

    class Abstraction
    {
        protected Implementor implementor;

        public void SetImplementor(Implementor implementor)
        {
            this.implementor = implementor;
        }

        public virtual void Operation()
        {
            implementor.Operation();
        }
    }

    class RefinedAbstraction : Abstraction
    {
        public override void Operation()
        {
            implementor.Operation();
        }
    }

 

    abstract class Implementor
    {
        public abstract void Operation();
    }

    class ConcreteImplementorA : Implementor
    {
        public override void Operation()
        {
            //throw new NotImplementedException();
            Console.WriteLine("具体实现A的方法执行");
        }
    }

 

    class ConcreteImplementorB : Implementor
    {
        public override void Operation()
        {
            //throw new NotImplementedException();
            Console.WriteLine("具体实现B的方法执行");
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Abstraction ab = new RefinedAbstraction();

            ab.SetImplementor(new ConcreteImplementorA());
            ab.Operation();

            ab.SetImplementor(new ConcreteImplementorB());
            ab.Operation();

            Console.ReadKey();
        }
    }