adapter_1_2.cpp

来自「这是一些c++例程」· C++ 代码 · 共 30 行

namespace DesignPattern_Adapter
{
	//class Adaptee
	class Adaptee
	{
	public:
		void SpecialRequest() {}
	} ;
	//class Target
	class Target
	{
	public:
		virtual void Request() = 0 ;
	} ;
	//class Adapter
	class Adapter : public Target
	{
	public:
		virtual void Request() { _adaptee.SpecialRequest() ; }
	private:
		Adaptee _adaptee ;
	} ;
}
void main()
{
	using namespace DesignPattern_Adapter ;
	Target *p = new Adapter() ;
	p->Request() ; 		//实际上调用的是Adaptee::SpecialRequest()
}