// dllmain.cpp : 定义 DLL 应用程序的入口点。
#include "stdafx.h"
 
BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
					 )
{
	switch (ul_reason_for_call)
	{
	case DLL_PROCESS_ATTACH:
	case DLL_THREAD_ATTACH:
	case DLL_THREAD_DETACH:
	case DLL_PROCESS_DETACH:
		break;
	}
	return TRUE;
}
 
extern "C" __declspec(dllexport) int  add(int a, int b)
{
	return (a + b);
}
 
extern "C" __declspec(dllexport)int  sub(int a, int b)
{
	return (a - b);
}

extern "C" __declspec(dllexport) int _stdcall  add(int a, int b)
{
	return (a + b);
}
 
extern "C" __declspec(dllexport)int _stdcall  sub(int a, int b)
{
	return (a - b);
}