下面程序的结果是 #include<iostream.h> class A public: A( ) cout<< construtA <<endl; virtual~A( ) cout<< destructA <<endl;; class B:public A ; class C:public A ; class D:public B,public C ; void main( ) D d;
A.constructA
destructA
B.constructA
constructA
destructA
destructA
C.constructA
constructA
constructA
destructA
destructA
destructA
D.constructA
onstructA
constructA
constructA
destructA
destructA
destructA
destructA