strfile.cpp

来自「《C++.Primer.Plus.第五版.中文版》的源代码」· C++ 代码 · 共 29 行

// strfile.cpp -- read strings from a file
#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
int main()
{
     using namespace std;
     ifstream fin;
     fin.open("tobuy.txt");
     if (fin.is_open() == false)
     {
        cerr << "Can't open file. Bye.\n";
        exit(EXIT_FAILURE);
     }
     string item;
     int count = 0;
     
     getline(fin, item, ':');
     while (fin)  // while input is good
     {
        ++count;
        cout << count <<": " << item << endl;
        getline(fin, item,':');     
     }
     cout << "Done\n";
     fin.close();
     return 0;
}