详解C++设计模式编程中建造者模式的实现

#include "stdafx.h" 
#include <stdlib.h> 
#include <iostream> 
using namespace std; 
  
//抽象类，用来安排创建人的具体流程，其他类必须遵循这个流程，但是可以自己具体实现 
class CPersonBuilder 
{ 
public: 
 virtual void BuildHead()=0; 
 virtual void BuildBody()=0; 
 virtual void BuildArmLeft()=0; 
 virtual void BuildArmRight()=0; 
 virtual void BuildLegLeft()=0; 
 virtual void BuildLegRight()=0; 
}; 
  
//创建瘦子的类 
class CThinPersonBuilder:public CPersonBuilder 
{ 
public: 
 CThinPersonBuilder() 
 { 
 cout<<"is creating thin person "<<endl<<endl; 
 } 
 ~CThinPersonBuilder() 
 { 
 cout<<"is finished for thin person"<<endl<<endl; 
 } 
public: 
 void BuildHead() 
 { 
 cout<<"BuildHead"<<endl; 
 } 
 void BuildBody() 
 { 
 cout<<"BuildBody(thin)"<<endl; 
 } 
 void BuildArmLeft() 
 { 
 cout<<"BuildArmLeft"<<endl; 
 } 
 void BuildArmRight() 
 { 
 cout<<"BuildArmRight"<<endl; 
 } 
 void BuildLegLeft() 
 { 
 cout<<"BuildLegLeft"<<endl; 
 } 
 void BuildLegRight() 
 { 
 cout<<"BuildLegRight"<<endl; 
 } 
}; 
 //创建胖子的类 
class CFatPersonBuilder:public CPersonBuilder 
{ 
public: 
 CFatPersonBuilder() 
 { 
 cout<<"is creating fat person"<<endl; 
 } 
 ~CFatPersonBuilder() 
 { 
 cout<<"is finished for fat person"<<endl; 
 } 
public: 
 void BuildHead() 
 { 
 cout<<"BuildHead"<<endl; 
 } 
 void BuildBody() 
 { 
 cout<<"BuildBody(Fat)"<<endl; 
 } 
 void BuildArmLeft() 
 { 
 cout<<"BuildArmLeft"<<endl; 
 } 
 void BuildArmRight() 
 { 
 cout<<"BuildArmRight"<<endl; 
 } 
 void BuildLegLeft() 
 { 
 cout<<"BuildLegLeft"<<endl; 
 } 
 void BuildLegRight() 
 { 
 cout<<"BuildLegRight"<<endl; 
 } 
}; 
  
//指挥者类，用来指挥创建的人是瘦子还是胖子 
class CPersonDirector 
{ 
public: 
 CPersonDirector(CPersonBuilder *p) 
 { 
 this->m_p=p; 
 } 
 const void CreatePerson(void) const 
 { 
 m_p->BuildHead(); 
 m_p->BuildBody(); 
 m_p->BuildArmLeft(); 
 m_p->BuildArmRight(); 
 m_p->BuildLegLeft(); 
 m_p->BuildLegRight(); 
 } 
private: 
 CPersonBuilder *m_p; 
}; 
  
  
  
 
int _tmain(int argc, _TCHAR* argv[]) 
{ 
 cout<<"---------建造者模式测试案例------------------------"<<endl<<endl; 
  
 CThinPersonBuilder *p_tp=new CThinPersonBuilder(); 
 CPersonDirector *p_dtp=new CPersonDirector(p_tp); 
 p_dtp->CreatePerson(); 
 delete p_tp; 
 delete p_dtp; 
 p_tp=NULL; 
 p_dtp=NULL; 
 cout<<endl<<endl; 
 
 CFatPersonBuilder *p_fp=new CFatPersonBuilder(); 
 CPersonDirector *p_dfp=new CPersonDirector(p_fp); 
 p_dfp->CreatePerson(); 
 delete p_fp; 
 delete p_dfp; 
 p_fp=NULL; 
 p_dfp=NULL; 
 system("pause"); 
 return 0; 
}