程序清单3.4 hexoct2.cpp

// hexoct2.cpp -- display value in hex and octal
#include <iostream>

int main()
{
    using namespace std;
    int chest = 42;
    int waist = 42;
    int inseam = 42;

    cout << "Monsieur cuts a striking figure!" << endl;
    cout << "chest = " << chest << " (decimal for 42)" << endl;
    cout << hex;
    cout << "waist = " << waist << " (hexadecimal for 42)" << endl;
    cout << oct;
    cout << "inseam = " << inseam << " (octal for 42)" << endl;

    return 0;
}

输出：

Monsieur cuts a striking figure!
chest = 42 (decimal for 42)
waist = 2a (hexadecimal for 42)
inseam = 52 (octal for 42)