class CNoTrackObject{  public: //在此出过错，没有加public 默认为类的私有变量，MyThreadData继承这个类后也无法访问成员变量      void* operator new(size_t nSize);      void operator delete(void*);      virtual ~CNoTrackObject(){}  };

void* CNoTrackObject::operator new(size_t nSize)  {      //申请一块内存      void* p = ::GlobalAlloc(GPTR , nSize);      return p;  }    void CNoTrackObject::operator delete(void* p)  {      if (p != NULL)      {          ::GlobalFree(p);      }  }

struct MyThreadData:public CNoTrackObject  {      MyThreadData* pNext;      int nShortData;  };  for (int i=0;i<10;i++)      {          <span style="color:#ff0000;">pData = new MyThreadData;</span>          pData->nShortData = i;          list.AddHead(pData);      }        //遍历链表，释放MyThreadData对象占用的空间      pData = (MyThreadData*)list.GetHead();      while(pData != NULL)      {          MyThreadData* pNextData = pData->pNext;          printf("The value is %d\n",pData->nShortData);          <span style="color:#ff0000;">delete pData;</span>          pData = pNextData;      }