派生类生成过程——单继承的构造函数和析构函数

#include<iostream>using namespace std;class B{ public:     B();     B(int i);     void print()const; private:    int b;};B::B(){    b=0;    cout<<"B's dafault constructor called."<<endl;}B::B(int i){    b=i;    cout<<"B's dafault constructor called."<<endl;}void B::print()const{    cout<<b<<endl;}class C:public B{public:    C();    C(int i,int j);    void print()const;private:    int c;};C::C(){        cout<<"C's dafault constructor called."<<endl;}C::C(int i,int j):B(i),c(j){    cout<<"C's dafault constructor called."<<endl;}void C::print()const{    B::print();    cout<<c<<endl;}int main(){    C obj(5,6);    obj.print();    return 0;}

运行结果：