switch.cpp

一本很好的C++学习的丛书！初学者必看的

// switch.cpp -- use the switch statement
#include <iostream>
using namespace std;
void showmenu();   // function prototypes
void report();
void comfort();
int main()
{
    showmenu();
    int choice;
    cin >> choice;
    while (choice != 5)
    {
        switch(choice)
        {
            case 1  :   cout << "\a\n";
                        break;
            case 2  :   report();
                        break;
            case 3  :   cout << "The boss was in all day.\n";
                        break;
            case 4  :   comfort();
                        break;
            default :   cout << "That's not a choice.\n";
        }
        showmenu();
        cin >> choice;
    }
    cout << "Bye!\n";
    return 0;
}

void showmenu()
{
    cout << "Please enter 1, 2, 3, 4, or 5:\n"
            "1) alarm           2) report\n"
            "3) alibi           4) comfort\n"
            "5) quit\n";
}
void report()
{
    cout << "It's been an excellent week for business.\n"
        "Sales are up 120%. Expenses are down 35%.\n";
}
void comfort()
{
    cout << "Your employees think you are the finest CEO\n"
        "in the industry. The board of directors think\n"
        "you are the finest CEO in the industry.\n";
}