【C++ Primer Plus 编程练习】 2.7

2013-05-16

2.7.1

#include <iostream>
using namespace std;

int main()
{
        cout << "Your name : FZQL." << endl ;
        cout << "Your address : Mars." << endl ;
}

 

 

2.7.2

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    double n ;
    cin >> n ;
    cout << n * 220 << endl ;
}

 

 

2.7.3

#include <iostream>
using namespace std;

void fun1(void)
{
    cout << "Three blind mice" << endl ;
}

void fun2(void)
{
    cout << "See how they run" << endl ;
}

int main()
{
    fun1() ;
    fun1() ;
    fun2() ;
    fun2() ;
}

 

 

2.7.4

#include <iostream>
using namespace std;

void fun1(void)
{
    cout << "Three blind mice" << endl ;
}

void fun2(void)
{
    cout << "See how they run" << endl ;
}

int main()
{
    fun1() ;
    fun1() ;
    fun2() ;
    fun2() ;
}

 

 

2.7.5

#include <iostream>
using namespace std;

double fun( double a )
{
    return a * 63240 ;
}

int main()
{
    double l , u ;
    cout << "Enter the number of light years: " ;
    cin >> l ;
    u = fun(l) ;
    cout << l << " light years = " << u << " astronomical units." << endl ;
}

 

 

2.7.6

#include <iostream>
using namespace std;

void fun( int a , int b )
{
    cout << "Time: " << ( a + b / 60 ) % 24 << ":" << b % 60  << endl ;
}

int main()
{
    int h , m ;
    cout << "Enter the number of hours: " ;
    cin >> h ;
    cout << "Enter the number of minutes: " ;
    cin >> m ;
    fun( h , m ) ;
}