7-7
#include <iostream>
#include<string>
using namespace std;
class Document{
private:
string name;
public:
Document(string nam):name(nam)
{
cout<<"Name:"<<name<<endl;
}
~Document(){}
};
class Book:public Document{
private:
int pageCount;
public:
Book(string nam,int ag):Document(nam),pageCount(ag)
{
cout<<"Page:"<<pageCount<<endl;
}
~Book(){}
};
int main()
{
int page;
string name;
cout<<"Input Name and Page:";
cin>>name>>page;
Book b(name,page);
return 0;
}
7-9
#include <iostream>
#include <string>
using namespace std;
class Object
{
public:
Object()
{
cout<<"Constructing Object!"<<endl;
}
~Object()
{
cout<<"Destructing Object!"<<endl;
}
void getInfo()
{
cout<<"Input weight:";
cin>>weight;
}
void showInfo()//类Object的成员函数
{
cout<<"Weight:"<<weight<<endl;
}
private:
int weight;
};
class Box:public Object{
private:
int height;
int width;
public:
Box()
{
cout<<"Constructing Box!"<<endl;
}
~Box()
{
cout<<"Destructing Box!"<<endl;
}
void getInfo()
{
Object::getInfo();
cout<<"Input height and width:";
cin>>height>>width;
}
void showInfo()
{
Object::showInfo();
cout<<"Height and width:"<<height<<","<<width<<endl;
}
};
int main()
{
Box box;
box.getInfo();
box.showInfo();
return 0;
}
标签：cout,int,Object,第二天,打卡,Document,public,name From： https://www.cnblogs.com/xscya/p/17316345.html