4 pair类型 <utility>

pair类型

#include <iostream>
#include <utility>

using std::cout;
using std::endl;
using std::string;
using std::pair;

int main(void)
{
//      pairproust("james","joyce");
        // using typedef defintion
        typedef pair Author;
        Author proust("james","joyce");

        cout << proust.first << endl;
        cout << proust.second << endl;
        return 0;
}

ywx@ywx:~/Desktop/yu$ ./pair
james
joyce