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Helper.h：Code Content

							#if !defined(AFX_HELPER_H)
#define AFX_HELPER_H
#define SafeRelease(pInterface) if(pInterface != NULL) {pInterface->Release(); pInterface=NULL;}
#define SafeDelete(pObject) if(pObject != NULL) {delete pObject; pObject=NULL;}
#include <stdio.h>
#endif

						