《C++ Primer》(5th)习题解答——8.10(使用ifstream对象与istringstream对象)

题目描述

代码

#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <vector>

using std::cin;
using std::cout;
using std::endl;
using std::string;
using std::vector;
using std::istream;
using std::ifstream;
using std::istringstream;

int main()
{
	vector<string> s;
	string line;
	string file("C:\\Users\\dxm\\Desktop\\Vs_code\\ExerciseCode\\data.txt");
	ifstream file_in(file);
	cout << "输出每行中由空白符分割的字符" << endl;
	while (getline(file_in, line))
	{
		s.push_back(line);
		istringstream in(line);
		string word("");
		while (in >> word)
		{
			cout << word << endl;
		}
	}
	cout << endl;
	cout << "按行输出文件中的内容：" << endl;
	for (auto c : s)
		cout << c << endl;
	return 0;
}

文件内容

输出