C++PrimerPlus中文第六版第2章编程练习答案

1、

#include<iostream>
using namespace std;
int main()
{
    cout << "Name: Luoxiao,\nAddress: Xidian University, Xi'an, Shaanxi Province, China.\n";
    return 0;
}

2、

#include<iostream>
using namespace std;
int main()
{
    float longs;
    cout << "Please input the distance in longs: ";
    cin >> longs;
    cout << longs << " longs equals to " << 220 * longs << " yards.\n";
    return 0;
}

3、

#include<iostream>
using namespace std;
void fun1(void);
void fun2();
int main()
{
    fun1(); fun1();
    fun2(); fun2();
    return 0;
}
void fun1()
{
    cout << "Three blind mice\n";
}
void fun2()
{
    cout << "See how they run\n";
}

4、

#include<iostream>
using namespace std;
int main()
{
    int age;
    cout << "Enter your age: ";
    cin >> age;
    cout << "Age " << age << " includes " << 12 * age << " months.\n";
    return 0;
}

5、

#include<iostream>
using namespace std;
int main()
{
    float celsius;
    cout << "Please enter a Celsius value: ";
    cin >> celsius;
    cout << celsius << " degrees Celsius is " << 1.8 * celsius + 32.0 << " degrees Fahrenheit.\n";
    return 0;
}

6、

#include<iostream>
using namespace std;
int main()
{
    double lightYears;
    cout << "Enter the number of light years: ";
    cin >> lightYears;
    cout << lightYears << " light years = " << 64240 * lightYears << " astronomial units.\n";
    return 0;
}

7、

#include<iostream>
using namespace std;
void fun(int, int);
int main()
{
    int hour, minute;
    cout << "Enter the number of hours: ";
    cin >> hour;
    cout << "Enter the number of minutes: ";
    cin >> minute;
    fun(hour, minute);
    
    return 0;
}
void fun(int hour, int minute)
{
    cout << hour << ":" << minute << endl;
}