Dev-C++下问题

onejian 2010-07-24 05:16:18

"单词转换"
代码：

#include <iostream>



#include <stdexcept>



#include <fstream>



#include <sstream>



#include <string>



#include <map>



using namespace std;



ifstream& open_file (ifstream &in, const string &file);



int main(int argc, char **argv)



{



    map<string, string> trans_map;



    string key, value;



    if (argc != 3) { throw runtime_error("wrong number of arguments"); }



    ifstream map_file;



    if (!open_file(map_file, argv[1])) { throw runtime_error("no transfromation file"); }



    while (map_file >> key >> value)



    {



        trans_map.insert(make_pair(key, value));



    }



    ifstream input;



    if (!open_file(input, argv[2])) { throw runtime_error("no input file"); }



    string line;



    while (getline(input, line))



    {



        istringstream stream(line);



        string word;



        while (stream >> word)



        {



            map<string , string>::const_iterator map_it = trans_map.find(word);



            if (map_it != trans_map.end())



            {



                word = map_it->second;



            }



            cout << word << " ";



        }



        cout << endl;



    }

system("pause");

    return 0;



}



ifstream& open_file (ifstream &in, const string &file)



{



    in.close();



    in.clear();



    in.open(file.c_str());



    return in;



}

--replace.txt--

`en them

cuz because

gratz grateful

i I

nah no

pos supposed

sez said

tanx thanks

wuz was

--input.txt--

nah i sez tanx cuz i wuz pos to not cuz i wuz gratz

--屏幕输出--

main replace.txt input.txt

no I said thanks because I was supposed to not because I was grateful
为什么在dev c++下界面一闪而过。加了system("pause")，没用。帮忙下，怎么解决？谢谢

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