软件工程作业

题目：统计文本中单词出现频率前十

源代码：

#include <iostream>

#include <fstream>

#include <vector>

#include <string>

#include<iomanip>

#include<utility>

#include<algorithm>

using namespace std;

vector<pair<string,int>> word;

void findsameword(string Word);

bool sortWord(pair<string, int> elem1, pair<string, int> elem2);

void main()

{

system("color F1");

string temp;

ifstream TextFile;

TextFile.open("test.txt");

while (TextFile >> temp)

{

findsameword(temp);

}

sort(word.begin(), word.end(),sortWord);

cout << "出现单词频率前十的是：" << endl;

for (vector<pair<string, int>>::iterator itor = word.begin(); itor != word.begin()+10; itor++)

{

cout << "单词：" << setw(38) << setiosflags(ios::left) << itor->first << "数量：" << itor->second << endl;

}

system("pause");

}

void findsameword(string Word)

{

bool flag = false;

for (vector<pair<string,int>>::iterator itor = word.begin(); itor != word.end(); itor++)

{

if (Word == itor->first)

{

itor->second += 1;

flag = true;

}

}

if (!flag)

{

word.push_back(make_pair(Word, 1));

}

}

bool sortWord(pair<string, int> elem1, pair<string, int> elem2)

{

return elem1.second > elem2.second;

}

单词文本截图：





运行截图：