C++设计模式之Bridge模式

namespace DesignPattern_Bridge
{
    // class Implementor
    class Implementor
    {
    public:
        virtual void OperationImp() = 0;
    };

    // class ConcreteImplementorA
    class ConcreteImplementorA : public Implementor
    {
    public:
        virtual void OperationImp() { }
    };

    // class ConcreteImplementorB
    class ConcreteImplementorB : public Implementor
    {
    public:
        virtual void OperationImp() { }
    };

    // class Abstraction
    class Abstraction
    {
    public:
        void Operation(Implementor* imp) { assert(imp) ; imp->OperationImp(); }
    };
}

//客户端代码：
{
    using namespace DesignPattern_Bridge ;
    Abstraction obj ;
    Implementor *impa = new ConcreteImplementorA() ;
    Implementor *impb = new ConcreteImplementorB() ;
    obj.Operation(impa) ; //第一种实现方法
    obj.Operation(impb) ; //第二种实现方法
}