Dll

// dll.cpp : Defines the entry point for the DLL application.
//

#include "stdafx.h"
#include "iostream.h"
_declspec(dllexport) int add(int a,int b)
{
    return a+b;    
}

_declspec(dllexport) int sub(int a,int b)
{
    return a-b;    
}

_declspec(dllexport) int mul(int a,int b)
{
    return a*b;    
}

_declspec(dllexport) void print(int a,int b)
{
    cout<<"Fuck,XXXXX"<<endl;
}

BOOL APIENTRY DllMain( HANDLE hModule, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved
                     )
{
    return TRUE;
}







// main.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "iostream.h"
#pragma comment(lib,"dll.lib")

extern int add(int a,int b);
extern int sub(int a,int b);
extern int mul(int a,int b);
extern void print(int a,int b);
int main(int argc, char* argv[])
{
    cout<<add(1,2)<<endl;
    cout<<sub(1,2)<<endl;
    cout<<mul(1,2)<<endl;
    print(1,2);
    printf("Hello World!\n");
    return 0;
}




//在动态链接库编译执行完成以后，把生成的dll文件和lib文件拷贝到main函数的目录的Debug前一级目录中，否则会出现无法打开lib文件的情况