10,11周阅读程序

#include <iostream>using namespace std;class Data{public:    Data(int i):x(i){cout<<"A";}    ~Data(){ cout<<"B";}private:    int x;};class Base{public:    Base(int i):b1(i){cout<<"C";}    ~Base(){ cout<<"D";}private:    int b1;};class Derived:public Base{public:    Derived (int i,int j):Base(i),d1(j){        cout<<"E";    }    ~Derived(){cout<<"F";}private:    Data d1;};int main(){    Derived obj(1,2);    return 0;}结果：CAEFBD