下面程序的结果是 #include<iostream.h> class A { public: A( ) { cout < < construtA < < end1;} virtual ~A( ) { cout < < destructA < < end1;} }; class B:public A { }; class C:public A { }; class D:public B,public C { }; void main( ) { Dd;}
A. constructA destructA
B. constructA constructA destructA destructA
C. constructA constructA constructA destructA destructA destructA
D. constructA constructA constructA constructA destructA destructA
destructA destructA