有如下程序:#include<iostream>using namespace std;classA{public:A(){cout<<"A";}};class B{pu
有如下程序: #include<iostream> using namespace std; classA { public: A(){cout<<"A";} }; class B{public:B(){cout<<"B";}}; class C:public A { B b; public: C(){cout<<"C";} }; int main(){C obj;return 0;} 执行后的输出结果是()
A.ABC
B.BAC
C.ACB
D.CBA