#pragma once  template<typename T,std::size_t nNum>  class CMemPool  {  public:   CMemPool(){ Init();}   ~CMemPool() { Fini();}   T* GetElement();   void ReleaseElement(T* t1);   void Init();   void Fini();  protected:   std::list<T*> m_list;  };  template<typename T,std::size_t nNum>  void CMemPool<T,nNum>::Init()  {   for (size_t i=0; i<nNum; i++)   {    T* t1 = new T;    if (t1 != NULL)    {     m_list.push_back(t1);    }   }  }  template<typename T,std::size_t nNum>  void CMemPool<T,nNum>::Fini()  {   std::list<T*>::iterator it = m_list.begin();   for (; it != m_list.end();)   {    T* tTmp = *it;    it = m_list.erase(it);    if (tTmp != NULL)     delete tTmp;   }  }  template<typename T,std::size_t nNum>  T* CMemPool<T,nNum>::GetElement()  {   if (m_list.size() == 0)    Init();       std::list<T*>::iterator it = m_list.begin();   T* t1 = NULL;   for(; it != m_list.end();)   {    if (*it == NULL)    {     it = m_list.erase(it);    }    else    {     t1 = *it;     m_list.erase(it);     break;    }   }   return t1;  }  template<typename T,std::size_t nNum>  void CMemPool<T,nNum>::ReleaseElement(T* t1)  {   if (t1 != NULL)    m_list.push_back(t1);  }