学步园

#include <iostream>

using namespace std;

class CDataCapabilityMgr
{
private:
    /**
     * 默认构造函数
     */
    CDataCapabilityMgr(){};

public:
    /**
     * 默认析构函数
     */
    ~CDataCapabilityMgr(){};

public:
    static CDataCapabilityMgr* GetInstance();

    void out(){cout<<"signal "<<endl;}
private:
    static CDataCapabilityMgr*  m_pDCapMgr;
};

CDataCapabilityMgr* CDataCapabilityMgr::m_pDCapMgr = NULL; 

CDataCapabilityMgr* CDataCapabilityMgr::GetInstance()
{     
	 m_pDCapMgr = new CDataCapabilityMgr();
     return m_pDCapMgr;
}

int main()
{
     CDataCapabilityMgr::GetInstance()->out();
    CDataCapabilityMgr* p = CDataCapabilityMgr::GetInstance();
	p->out();
	return 0;
}