题目要求如下

1.自己版本

#pragma once
#include <fstream>
#include <string>
#include <vector>
#include <set>
#include <map>
#include <iostream>
#include <sstream>


using namespace std;

int main()
{
	ifstream t_if ("C:\\Users\\16519\\Desktop\\shenqingshu.txt");
	string line;
	string word;
	int line_number = 0;
	map<string, set<int>> ss_map;
	vector<string> text_s;
	while (getline(t_if, line))
	{
		line_number++;
		printf("line_number:%d:%s\n", line_number, line.c_str());
		text_s.push_back(line);
		istringstream iss(line);
		while (iss >> word)
		{
			if (ss_map[word].find(line_number) == ss_map[word].end())
			{
				//cout << word << " insert line_number: " << line_number << ";";
				ss_map[word].insert(line_number);
			}
			else
			{

			}
		}
		//cout << endl << endl;
	}
	
	while (true)
	{
		printf("please input you want to search number(you can input 'q' to stop):\n");
		string search_number;
		if (!(cin >> search_number) || search_number == "q") break;

		if (ss_map.find(search_number) != ss_map.end())
		{
			printf("the number you are searching is: %s:\n", search_number.c_str());
			set<int> s_temp = ss_map[search_number];
			for (auto j : s_temp)
			{
				cout << j << ":" << text_s[j - 1] << endl;
			}
			cout << endl;
		}
		else
		{
			printf("Error! The number you are searching doesn't exit.\n\n");
		}
	}

	return 0;
}

2.课本版本

3.我们要进行对比