编写一个小dll，供其他程序调用，新手勿喷

#include <iostream>
#include<Windows.h>
using namespace std;
typedef int(*MYdll)(int ,int );
int  main()
{   
    MYdll pmydll;
    HINSTANCE  hLodaDll;
    
    hLodaDll=LoadLibrary("C:\\Users\\Administrator\\Desktop\\dll.dll");
    if (NULL==hLodaDll)
    {  
        cout<<"load dll failed:"<<GetLastError()<<endl;
        return 0;
    }
    pmydll=(MYdll)GetProcAddress(hLodaDll,"Sum");
    if (NULL==pmydll)
    {  
        cout<<"函数指针获取失败："<<GetLastError()<<endl;
        return 0;
    }
    cout<<"求2+9和："<<(pmydll)(2,9)<<endl;
    FreeLibrary(hLodaDll);
}