首先我想到了dllDLLMain中的入口点,但是当我尝试在C#中导入它时,我得到一个错误,指出找不到入口点这是我的代码:#includeintTest(intx,inty){returnx+y;}BOOLAPIENTRYDllMain(HMODULEhModule,DWORDul_reason_for_call,LPVOIDlpReserved){switch(ul_reason_for_call){caseDLL_PROCESS_ATTACH:MessageBox(0,L"Test",L"Fromunmanageddll",0);caseDLL_THREAD_ATTACH:caseD