C++ Primer Plus | chapter 2 编程练习

第二章 开始学习C++

编程练习：

#include<iostream>
using namespace std;
int main()
{
    
    
    cout << "My name is Irving Chen." << endl;
    cout << "My address is SYSU." << endl;
    return 0;
}

#include<iostream>
using namespace std;
int main()
{
    
    
    cout << "My name is Irving Chen." << endl;
    cout << "My address is SYSU." << endl;
    return 0;
}

#include<iostream>
using namespace std;

void mice(void);
void run(void);

int main()
{
    
    
    mice();
    mice();
    run();
    run();
    return 0;
}

void mice()
{
    
    
    cout << "Three blind mice" << endl;
}
void run()
{
    
    
    cout << "See how they run" << endl;
}

#include<iostream>
using namespace std;

int main()
{
    
    
    int age;
    cout << "Enter your age: ";
    cin >> age;
    cout << 12*age << " months" << endl;
    return 0;
}

#include<iostream>
using namespace std;

double to_Fahrenheit(double);

int main()
{
    
    
    double val, fah;
    cout << "Please enter a Celsius value: ";
    cin >> val;
    fah = to_Fahrenheit(val);
    cout << val << " degrees Celsius is " << fah << " degrees Fahrenheit." << endl;
    return 0;
}

double to_Fahrenheit(double val)
{
    
    
    return (32.0 + 1.8*val);
}

#include<iostream>
using namespace std;

double to_Astro(double);

int main()
{
    
    
    double ly;
    cout << "Enter the number of light years: ";
    cin >> ly;
    cout << ly << " light years = " << to_Astro(ly) << " astronomical units." << endl;
    return 0;
}

double to_Astro(double ly)
{
    
    
    return ly*63240;
}