A a B b C c D d E e

D D E

//需要两个文件，一个是字典文件，一个是输入文件

#include <iostream>

#include <fstream>

#include <sstream>

#include <utility>

#include <map>

#include <string>

using namespace std;

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

{

        in.close();

		in.clear();

        in.open(file.c_str());

		return in;

 }

int main(int argc,char ** argv)

{

	map<string, string> trans_map;

	string key, value;

	if (argc != 3)

	{

		throw runtime_error("wrong number of arguments ,we need an dictionary.txt and an input.txt");

	}

	ifstream map_file;

	if (!open_file(map_file,argv[1]))

	{

		throw runtime_error("no dictionary 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;

		bool firstword = true;

		while (stream >> word)

		{

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

			if (map_it != trans_map.end())

			{

				word = map_it->second;

			}

			if (firstword)

			{

				firstword = false;

			}

			else

			{

				cout << " ";

			}

			cout << word;

		}

		cout << endl;

	}

	return 0;

}

edit:trans_words.o

	g++ -o edit trans_words.o

trans_words.o:trans_words.cpp

	g++ -c trans_words.cpp

clean:

	rm trans_words.o

#!/bin/sh

make

./edit dictionary.txt input.txt

d d e