manip.cpp

来自「c++ primer plus 例题课后题源代码」· C++ 代码 · 共 26 行

// manip.cpp -- using format manipulators
#include <iostream>
int main()
{
    using namespace std;
    cout << "Enter an integer: ";
    int n;
    cin >> n;

    cout << "n     n*n\n";
    cout << n << "     " << n * n << " (decimal)\n";
// set to hex mode
    cout << hex;
    cout << n << "     ";
    cout << n * n << " (hexadecimal)\n";

// set to octal mode
    cout << oct << n << "     " << n * n << " (octal)\n";

// alternative way to call a manipulator
    dec(cout);
    cout << n << "     " << n * n << " (decimal)\n";

    return 0; 
}