/* 文件名：lib.h　*/

#ifndef LIB_H

#define LIB_H

extern "C" int __declspec(dllexport)add(int x, int y);

#endif


/* 文件名：lib.cpp　*/

#include "lib.h"

int add(int x, int y)

{

return x + y;

}

#include <stdio.h>

#include <windows.h>

typedef int(*lpAddFun)(int, int); //宏定义函数指针类型

int main(int argc, char *argv[])

{

HINSTANCE hDll; //DLL句柄

lpAddFun addFun; //函数指针

hDll = LoadLibrary("..\\Debug\\dllTest.dll");

if (hDll != NULL)

{

addFun = (lpAddFun)GetProcAddress(hDll, "add");

if (addFun != NULL)

{

int result = addFun(2, 3);

printf("%d", result);
}

FreeLibrary(hDll);
}

return 0;

}