#include <iostream>

#include <list>

#include <string>

using namespace std;





//公司类，提供接口  

class Company      

{    

public:    

Company(string name)  

{  

m_name = name;  

}    





virtual ~Company()  

{}    





virtual void Add(Company *pCom)  

{}    





virtual void Display(int depth)  

{}  





protected:  

string m_name;    

};  





//详细公司  

class ConcreteCompany : public Company      

{    

public:    

ConcreteCompany(string name): Company(name)  

{}  





virtual ~ConcreteCompany()  

{}  





//添加�子树或叶子  

void Add(Company *pCom)  

{  

m_listCompany.push_back(pCom);  

}  





//显示  

void Display(int depth)  

{  

for(int i = 0;i < depth; i++)  

{  

cout<<"-";    





}  





cout<< m_name << endl;  





list<Company *>::iterator iter = m_listCompany.begin();    





for(; iter != m_listCompany.end(); iter++) //显示下层结点    

{      

(*iter)->Display(depth + 2);  

}  

}  





private:    

list<Company *> m_listCompany;    

};    





//详细的部门，財务部    

class FinanceDepartment : public Company     

{  

public:    

FinanceDepartment(string name):Company(name)  

{}    





virtual ~FinanceDepartment()  

{}    





//仅仅需显示，无限加入�函数，由于已是叶结点    

virtual void Display(int depth)  

{    

for(int i = 0; i < depth; i++)    

cout<<"-";    





cout<< m_name << endl;  

}  

};    





//详细的部门，人力资源部    

class HRDepartment :public Company      

{    

public:    

HRDepartment(string name):Company(name)  

{}  





virtual ~HRDepartment()  

{}  





//仅仅需显示，无限加入�函数，由于已是叶结点    

virtual void Display(int depth)  

{  

for(int i = 0; i < depth; i++)    

{  

cout<<"-";  

}  

cout<< m_name << endl;    

}    

};  





//////////////////////////////////////////////////////////////////////////  

//測试代码  

int main()  

{  

Company *root = new ConcreteCompany("总公司");    

Company *leaf1=new FinanceDepartment("財务部");    

Company *leaf2=new HRDepartment("人力资源部");    

root->Add(leaf1);    

root->Add(leaf2);    





//华东分公司  

Company *mid1 = new ConcreteCompany("华东分公司");    

Company *leaf3=new FinanceDepartment("华东分公司財务部");    

Company *leaf4=new HRDepartment("华东分公司人力资源部");    

mid1->Add(leaf3);  

mid1->Add(leaf4);  

root->Add(mid1);  





//南京办事处  

Company *mid2=new ConcreteCompany("南京办事处");    

FinanceDepartment *leaf5=new FinanceDepartment("南京办事处財务部");    

HRDepartment *leaf6=new HRDepartment("南京办事处人力资源部");    

mid2->Add(leaf5);  

mid2->Add(leaf6);  

root->Add(mid2);  





//杭州办事处  

Company *mid3=new ConcreteCompany("杭州办事处");    

FinanceDepartment *leaf7=new FinanceDepartment("杭州办事处財务部");    

HRDepartment *leaf8=new HRDepartment("杭州办事处人力资源部");    

mid3->Add(leaf7);    

mid3->Add(leaf8);    

mid2->Add(mid3);  





root->Display(0);  





delete leaf1;  

delete leaf2;    

delete leaf3;  

delete leaf4;    

delete leaf5;  

delete leaf6;  

delete leaf7;  

delete leaf8;    

delete mid1;  

delete mid2;    

delete root;    

getchar();

return 0;  

}