第五周项目2-游戏里的角色类

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#include<iostream>
using namespace std;
class Role
{
public:
    void eat(int a);
    void setRole(string lz,int b);
    void attack();
    bool isAlived();
    void beAttack();
    void show();
private:
    string name;
    int blood;
    bool life;
};
void Role::eat(int a)
{
    if(isAlived())
        blood=blood+a;
}
void Role::setRole(string lz,int b)
{
    name=lz;
    blood=b;
    if(blood>0)
        life=true;
    else
        life=false;
}
void Role::attack()
{
    if(blood>0)
        blood++;
}
void Role::beAttack()
{
    if(blood>0)
        blood--;
    else
        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;
}
int main( )
{
    Role mary;
    mary.setRole("Mary", 4);
    mary.show();
    mary.attack();
    mary.eat(2);
    mary.beAttack();
    mary.beAttack();
    mary.show();
    return 0;
}

运行结果：

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