C++ Primer Plus第六版 編程練習第二章

1.

#include<iostream>

int main()
{
    using namespace std;
    cout << "您的姓名 地址";
    return 0;
}

2.

#include<iostream>

const int Long_to_yard = 220;
int main()
{
    using namespace std;
    cout << "輸入一個距離: ";
    int n;
    cin >> n;
    int m = n* Long_to_yard;
    cout << n << " long = ";
    cout << m << " 碼" << endl;
    return 0;
}

3.

#include<iostream>
void userdefinitionA();
void userdefinitionB();
using namespace std;
int main()
{
    userdefinitionA();
    userdefinitionA();
    userdefinitionB();
    userdefinitionB();
    return 0;
}

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

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

4.

#include<iostream>

int main()
{
    using namespace std;
    int age, month;
    cout << "輸入你的年齡： ";
    cin >> age;
    month = age * 12;
    cout << "你已經過完了你人生中的" << month<<"個月";
    return 0;
}

5.

#include<iostream>

double ctemperature_to_ftemperature(double);

int main()
{
    using namespace std;
    double n, m;
    cout << "輸入一個華氏溫度 ";
    cin >> n;
    m = ctemperature_to_ftemperature(n);
    cout << n << " 攝氏溫度等於 "
        << m << " 華氏溫度";
    return 0;
}

double ctemperature_to_ftemperature(double ctemperature)
{

    double ftemperature = 1.8 * ctemperature + 32.0;
    return ftemperature;
}

6.

#include<iostream>
long double distance(double);
int main()
{
    using namespace std;
    double n;
    long double m;
    cout << "Enter the number of light years: ";
    cin >> n;
    m = distance(n);
    cout << n << " light years = "
        << m << " astronomical units.";
    return 0;
}

long double distance(double n)
{
    long double m;
    m = n * 63240;
    return m;
}

7.

#include<iostream>
void showtime(int, int);
using namespace std;
int main()
{
    int h, m;
    cout << "Enter the number of hours: ";
    cin >> h;
    cout << "Enter the number of minutes: ";
    cin >> m;
    showtime(h, m);
    return 0;
}
void showtime(int h, int m)
{
    cout << "Time: " << h << ":" << m;
}