#include <iostream>
using namespace std;class Scanner
{
public:  void Scan() { cout<<"词法分析"<<endl; }
}; class Parser
{
public:  void Parse() { cout<<"语法分析"<<endl; }
};  class GenMidCode
{
public:  void GenCode() { cout<<"产生中间代码"<<endl; }
};  class GenMachineCode
{
public:  void GenCode() { cout<<"产生机器码"<<endl;}
};  //高层接口
class Compiler
{
public:  void Run()   {  Scanner scanner;  Parser parser;  GenMidCode genMidCode;  GenMachineCode genMacCode;  scanner.Scan();  parser.Parse();  genMidCode.GenCode();  genMacCode.GenCode();  }
};  int main()
{  Compiler compiler;  compiler.Run();  return 0;
}  

#include <iostream>
using namespace std;//组件类
class Amplifier
{
public:void on(){cout << "Amplifier on" << endl;}void off(){cout << "Amplifier off" << endl;}
};class Tuner
{
public:void on(){cout << "Tuner on" << endl;}void off(){cout << "Tuner off" << endl;}
};class DvdPlayer
{
public:void on(){cout << "DvdPlayer on" << endl;}void off(){cout << "DvdPlayer off" << endl;}
};class Screen
{
public:void on(){cout << "Screen on" << endl;}void off(){cout << "Screen off" << endl;}
};//家庭影院
class HomeTheaterFacade
{
public://统一接口void watchMovie(){amp.on();tuner.on();dvd.on();screen.on();}void endMovie(){amp.off();tuner.off();dvd.off();screen.off();}HomeTheaterFacade(Amplifier am,Tuner tune,DvdPlayer dv,Screen scree){amp = am;tuner = tune;dvd = dv;screen = scree;}//~HomeTheaterFacade(){}
private:Amplifier amp;Tuner tuner;DvdPlayer dvd;Screen screen;
};//客户代码
int main()
{Amplifier amp;Tuner tuner;DvdPlayer dvd;Screen screen;HomeTheaterFacade homeTheaterFacade(amp,tuner,dvd,screen);;homeTheaterFacade.watchMovie();homeTheaterFacade.endMovie();return 0;
}

Amplifier on
Tuner on
DvdPlayer on
Screen on
Amplifier off
Tuner off
DvdPlayer off
Screen off