C++作业

来源：互联网发布：for在c语言中的作用编辑：程序博客网时间：2024/05/01 06:15

1、

#include <iostream>

using namespace std;

class Time

{

public:

voidset_time();

voidshow_time();

private: //成员改为公用的

int hour;

int minute;

int sec;

};

void Time::set_time() //在main函数之前定义

{

cin>>hour;

cin>>minute;

cin>>sec;

}

void Time::show_time() //在main函数之前定义

{

cout<<hour<<":"<<minute<<":"<<sec<<endl;

}

int main()

{Time t1;

t1.set_time();

t1.show_time();

return 0;

}

2、

#include <iostream>

using namespace std;

class Time

{public:

void set_time(void)

{cin>>hour;

cin>>minute;

cin>>sec;

}

void show_time(void)

{cout<<hour<<":"<<minute<<":"<<sec<<endl;}

private: int hour;

int minute;

int sec;

};

Time t;

int main()

{

t.set_time();

t.show_time();

return 0;

}

3、

#include <iostream>

using namespace std;

class Time

{public:

void set_time(void);

void show_time(void);

private:

int hour;

int minute;

int sec;

};

void Time::set_time(void)

{cin>>hour;

cin>>minute;

cin>>sec;

}

void Time::show_time(void)

{cout<<hour<<":"<<minute<<":"<<sec<<endl;}

Time t;

int main()

{ t.set_time();

t.show_time();

return 0;

}

4、

#include <iostream>
using namespace std;
class Time
{
public:
void set_time(void)
{
cin>>hour>>minute>>sec;
}
void show_time(void)
{
cout<<hour<<":"<<minute<<":"<<sec;
}
private:
int hour,minute,sec;
};
Time t;
int main()
{
t.set_time();
t.show_time();
return 0;
}

6、

#include<iostream>

using namespacestd;

class Cuboid

{public:

void get_value();

void volume();

void display();

private:

float length,width,height,vol;

};

void Cuboid::get_value()

{

cin>>length>>width>>height;

};

void Cuboid::volume()

{

vol=length*width*height;

}

void Cuboid::display()

{

cout<<vol<<endl;

}

int main()

{

Cuboid c1,c2,c3;

c1.get_value();

c1.volume();

cout<<"The volume of c1 is:";

c1.display();

c2.get_value();

c2.volume();

cout<<"The volume of c2 is:";

c2.display();

c3.get_value();

c3.volume();

cout<<"The volume of c3 is:";

c3.display();

return 0;

}

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