or.cpp

来自「一本很好的C++学习的丛书！初学者必看的」· C++ 代码 · 共 20 行

// or.cpp -- use logical OR operator
#include <iostream>
int main()
{
    using namespace std;
    cout << "This program may reformat your hard disk\n"
            "and destroy all your data.\n"
            "Do you wish to continue? <y/n> ";
    char ch;
    cin >> ch;
    if (ch == 'y' || ch == 'Y')             // y or Y
        cout << "You were warned!\a\a\n";
    else if (ch == 'n' || ch == 'N')        // n or N
        cout << "A wise choice ... bye\n";
    else
        cout << "That wasn't a y or an n, so I guess I'll "
                "trash your disk anyway.\a\a\a\n";
    return 0;
}