Fasade

Fasade

Fasade模式提供一个简单接口，调用复杂的子系统接口。

#include  < iostream >

using   namespace  std;


class  Printer
{
public:
    void Print() {cout<<"Print"<<endl;}
} ;

class  Typer
{
public:
    void Type() {cout<<"Type"<<endl;}
} ;

class  Writer
{
public:
    void Write() {cout<<"Write"<<endl;}
} ;

// Fasade
class  Fasade
{
public:
    Fasade(Printer* p, Typer* t, Writer* w)
        :pp(p),pt(t),pw(w){}
    ~Fasade()
    {
        delete pp;
        delete pt;
        delete pw;
    }
    //提供一个一致接口
    void Work() 
    {
        pp->Print();
        pt->Type();
        pw->Write();
    }
private:
    Printer*    pp;
    Typer*        pt;
    Writer*        pw;
} ;

int  main()
{
    Fasade *pf = new Fasade(new Printer, new Typer, new Writer);
    pf->Work();
    delete pf;

    return 0;
}