100.dll调用

• 在dll中声明

  _declspec(dllexport) int a = 10;

  _declspec(dllexport)void go()
  {
      
      MessageBoxA(0, "go", "go", 0);
  
  }

• 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);