100.dll调用

• 在dll中声明

   _declspec(dllexport) int a = ;

   _declspec(dllexport)void go()
   {
  
       MessageBoxA(, "go", "go", );
  
   }

• 调用dll

   HINSTANCE hlib = LoadLibrary("DLL.dll");

• 获取

   if (hlib!=NULL)
       {
  
           p = (void(*)())GetProcAddress(hlib, "go");//获取地址，强制转换
           if (p!=NULL)
           {
               p();
           }
  
       }

• 释放

   FreeLibrary(hlib);