C++ Primer Plus_编程练习_第2章开始学习C++-蒲公英云

C++ Primer Plus_编程练习_第2章开始学习C++

2.7 编程练习 100

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2.7.1

#include<iostream>
using namespace std;
int main()
{
    cout << "姓名：神迹小卒\n"
        << "地址：四川成都";
    return 0;
}
/*>>
姓名：神迹小卒
地址：四川成都
*/

2.7.2

#include<iostream>
using namespace std;
int main()
{
    double long_distance;
    cout << "请输入一个以long为单位的距离: ";
    cin >> long_distance;
    cout << long_distance << " long ";
    cout << "等于 ";
    long_distance *= 220.0;
    cout << long_distance << " 码" << endl;
    return 0;
}

2.7.3

#include<iostream>
using namespace std;
void print1(void);
void print2(void);
int main()
{
    print1();
    print1();
    print2();
    print2();
    return 0;
}
void print1(void)
{
    cout << "Three blind mice" << endl;
}
void print2(void)
{
    cout << "See how they run" << endl;
}
/*>>
Three blind mice
Three blind mice
See how they run
See how they run
*/

2.7.4

#include<iostream>
using namespace std;
int main()
{
    int age;
    cout << "Enter your age:";
    cin >> age;
    cout << "your months are:" << age * 12;
    return 0;
}
/*>>
Enter your age:29
your months are:348
*/

2.7.5

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

2.7.6

#include <iostream>
using namespace std;
double transform(double temp);
int main()
{
    double light_years;
    cout << "Enter the number of light years: ";
    cin >> light_years;
    cout << light_years << " light years = ";
    cout << transform(light_years);
    cout << " astronomical units." << endl;
    return 0;
}
double transform(double temp)
{
    return temp * 63240.0;
}

2.7.7

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