C++调用dll

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#include "tchar.h"
#include<Windows.h>  
#include <iostream>
typedef void(*funcptr)(int,int,int,int,int);
int main()
{
    using namespace std;
    const char* dllName = "";
    const char* funcName = "";
    HMODULE hDLL = LoadLibrary(_T(dllName));
    if (hDLL != NULL)
    {
        funcptr func = (funcptr)GetProcAddress(hDLL, funcName);
        if (func != NULL)
        {
            (*func)(1,1,1,1,1);
        }
        else
        {
            std::cout << "Cannot Find Function " << funcName << std::endl;
        }
    }
    else
    {
        std::cout << "Cannot Find " << dllName << std::endl;
    }
    getchar();
    return 0;
}