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【C++ Primer Plus习题】14.4

news 2025/5/23 12:57:08

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问题:

解答:
main.cpp

#include <iostream>
#include "person.h"
using namespace std;int main()
{Person person("Jakey", "Slong");person.show();Gunslinger g1("Tidy", "white", 12);g1.show();cout << "Gunslinger's nick is " << g1.Draw() << endl;PokerPlayer pokerplayer;pokerplayer.show();return 0;
}

person.h

#pragma once
#include <iostream>using namespace std;
class Person
{
private:string fname;string lname;
public:Person() :fname("no name"), lname("no name") {};Person(string f, string l);virtual ~Person();virtual void show()const;
};class Gunslinger :virtual public Person
{
private:int nick;
public:Gunslinger() :Person(), nick(0) {};Gunslinger(string f, string l, int n);~Gunslinger();double Draw()const;void show()const override;
};struct Card
{enum SUITE{SPADE,HEART,DIAMOND,CLUB};SUITE suite;int number;
};class PokerPlayer :virtual public Person
{
public:~PokerPlayer() {};Card Draw()const;
};class BadDude :public Gunslinger, public PokerPlayer
{
public:double GDraw()const;int CDraw()const;void show()const override;
};

person.cpp

#include "person.h"
#include <ctime>
#include <cstdlib>Person::Person(string f, string l):fname(f),lname(l){}
Person::~Person() {};
void Person::show()const
{cout << fname << "." << lname << endl;
}Gunslinger::Gunslinger(string f, string l, int n):Person(f,l),nick(n) {}
Gunslinger::~Gunslinger(){}
double Gunslinger::Draw()const
{srand(time(0));return rand() % 60;
}
void Gunslinger::show()const
{Person::show();cout << "Nick:" << nick << endl;
}Card PokerPlayer::Draw()const
{Card temp;srand(time(0));temp.number = rand () % 54+1;temp.suite = Card::SUITE(rand() % 4);return temp;
}double BadDude::GDraw()const
{double temp=Gunslinger::Draw();return temp;
}
int BadDude::CDraw()const
{int temp = PokerPlayer::Draw().number;return temp;
}
void BadDude::show()const
{Gunslinger::show();PokerPlayer::show();
}