C++设计模式之建造者模式(Builder)

class Builder
  {
  public:
    virtual void SelectCpu()= 0;
    virtual void SelectMatherboard() = 0;
    virtual void SelectMem() = 0;
    virtual void SelectDisk() = 0;
    virtual void SelectPower() = 0;
    virtual void SelectShell() = 0;
  };
  //构造PC
  class PCBuilder : public Builder
  {
  public:
    void SelectCpu()     { cout<<"Select PC Cpu"<<endl; }
    void SelectMatherboard() { cout<<"Select PC Matherboard"<<endl; }
    void SelectMem()     { cout<<"Select PC Mem"<<endl; }
    void SelectDisk()    { cout<<"Select PC Disk"<<endl; }
    void SelectPower()    { cout<<"Select PC Power"<<endl; }
    void SelectShell()    { cout<<"Select PC Shell"<<endl; }
  };
  //构造Notebook
  class NoteBookBuilder : public Builder
  {
  public:
    void SelectCpu()     { cout<<"Select NoteBook Cpu"<<endl; }
    void SelectMatherboard() { cout<<"Select NoteBook Matherboard"<<endl; }
    void SelectMem()     { cout<<"Select NoteBook Mem"<<endl; }
    void SelectDisk()    { cout<<"Select NoteBook Disk"<<endl; }
    void SelectPower()    { cout<<"Select NoteBook Power"<<endl; }
    void SelectShell()    { cout<<"Select NoteBook Shell"<<endl; }
  };
  //构造的指挥官
  class Director
  {
  private:
    Builder *m_pBuilder;
  public:
    Director(Builder *builder) { m_pBuilder = builder; }
    void Create(){
    m_pBuilder->SelectCpu();
    m_pBuilder->SelectMatherboard();
    m_pBuilder->SelectMem();
    m_pBuilder->SelectDisk();
    m_pBuilder->SelectPower();
    m_pBuilder->SelectShell();
    }
  };
  
  //调用
  int main()
  {
    NoteBookBuilder thin;
    Director director(&thin);
    director.Create();
    return 0;
  }