class MySignleton
{
public:
    static MySingleton* GetInstance()
    {
       if(!m_pThis)
          m_pThis = new MySingleton();
       return m_pThis;
    }

    static void DeleteInstance()
    { if(m_pThis) 
      {
       delete m_pThis;
       m_pThis = NULL;
      }
    }
private:
    MySingleton(){ m_pThis = NULL;}
    ~MySingleton();
    static MySingleton* m_pThis;
};