32位WindowsOSandCPU下程序如下
則func(99)的返回值是:()
C++程序如下: 為使兩段條件編譯代碼中的宏IUnknown_QueryInterface等價(jià),則下劃線處應(yīng)填入:()
A.p->vtbl->Release() B.p->vtbl.Release() C.p->vtbl.Release(p) D.p->vtbl->Release(p)