设计模式8：组合模式【结构型】

#include <iostream>#include <string>#include <vector>using namespace std;//struct ICompany{public:ICompany(string name) : m_name(name) { }virtual ~ICompany() { }virtual void Add(ICompany *pCompany) = 0;virtual void Show(int nDepth) = 0;protected:string m_name;};class CActualCompany : public ICompany{public:CActualCompany(string name) : ICompany(name) { }virtual ~CActualCompany() { }virtual void Add(ICompany *pCompany) {m_pCompanyVec.push_back(pCompany);}virtual void Show(int nDepth){for (int i=0;i<nDepth;i++)cout<<"-";cout<<m_name<<endl;vector<ICompany*>::iterator ite = m_pCompanyVec.begin();for(; m_pCompanyVec.end() != ite; ite++){(*ite)->Show(nDepth+2);}}private:vector<ICompany*> m_pCompanyVec;};class CFinanceDepartment : public ICompany{public:CFinanceDepartment(string name) : ICompany(name) { }virtual ~CFinanceDepartment() { }virtual void Add(ICompany *pCompany) { }virtual void Show(int nDepth){for (int i=0;i<nDepth;i++)cout<<"-";cout<<m_name<<endl;}};class CHRDepartment : public ICompany{public:CHRDepartment(string name) : ICompany(name) { }virtual ~CHRDepartment() { }virtual void Add(ICompany *pCompany) { }virtual void Show(int nDepth){for (int i=0;i<nDepth;i++)cout<<"-";cout<<m_name<<endl;}};//void main(){CActualCompany company("A");CActualCompany subCompany1("A1");CFinanceDepartment subFinance1("Finance A1");CHRDepartment subHR1("HR A1");subCompany1.Add(&subFinance1);subCompany1.Add(&subHR1);company.Add(&subCompany1);CFinanceDepartment finace("Finance A");company.Add(&finace);CHRDepartment hr("HR A");company.Add(&hr);company.Show(0);}