第七周项目-多文件类

问题及代码：

1.main.cpp

#include <iostream>
#include "game.h"
using namespace std;
int main()
{
    Role mary("Mary",500,"Tulong",200);
    Role jack("Jack",10,"Yitian",180);
    cout<<"---begin---"<<endl;
    mary.show();
    jack.show();
    cout<<"---1st round---"<<endl;
    jack.attack(mary);
    mary.show();
    jack.show();
    cout<<"---2nd round---"<<endl;
    mary.attack(jack);
    mary.show();
    jack.show();
    cout<<"---end---"<<endl;
    return 0;
}

2.role.cpp

#include <iostream>
#include "game.h"
using namespace std;
Role::Role(string nam,int b,string wnam,int f):name(nam),blood(b),weapon(wnam,f)
{
    if(blood>0)
        life=true;
    else
        life=false;
}
Role::~Role()
{
    cout<<name<<"退出江湖..."<<endl;
}
void Role::eat(int d)
{
    if(isAlived())
        blood+=d;
}
void Role::attack(Role &r)
{
    if(isAlived())
    {
        blood+=weapon.getForce();
        r.blood-=weapon.getForce();
        if(r.blood<=0)
            r.life=false;
    }
}
bool Role::isAlived()
{
    return life;
}
void Role::show()
{
    cout<<name<<" "<<"has "<<blood<<" "<<"blood,it is ";
    if(isAlived())
        cout<<"alived.";
    else
        cout<<"dead.";
    cout<<endl;
}

3.weapon.cpp

#include <iostream>
#include "game.h"
using namespace std;
Weapon::Weapon(string wnam,int f):wname(wnam),force(f){}
int Weapon::getForce()
{
    return force;
}

4.game.h

#ifndef GAME_H_INCLUDED
#define GAME_H_INCLUDED
using namespace std;
class Weapon
{
public:
    Weapon(string wnam,int f);
    int getForce();
private:
    string wname;
    int force;
};
class Role
{
public:
    Role(string nam,int b,string wnam,int f);
    ~Role();
    void eat(int d);
    void attack(Role &r);
    bool isAlived();
    void show();
private:
    string name;
    int blood;
    Weapon weapon;
    bool life;
};

运行结果：

知识点总结：

从这个程序中我们可以学习到多文件处理程序的方法。

学习心得：

首先要注意的是建立新文件时要勾选debug，其次要注意的是，程序中的头文件要如何添加，没必要都写进去，需要什么写什么。