#ifdef _DEBUG

#define DEBUG_CLIENTBLOCK new( _CLIENT_BLOCK, __FILE__, __LINE__)

#else

#define DEBUG_CLIENTBLOCK

#endif

#define _CRTDBG_MAP_ALLOC

#include <assert.h>

#include <stdlib.h>

#include <crtdbg.h>

#ifdef _DEBUG

#define new DEBUG_CLIENTBLOCK

#endif

///此函数在程序入口处首先调用

///会在output的窗口中输出检查结果

void CheckOnExit()

{

   _CrtSetDbgFlag ( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );

   int mCount = _CrtDumpMemoryLeaks();

   assert( mCount == );

}

void main()

{

   atexit(CheckOnExit);

   ...

}