C ++读取数字行 [英] C++ read line of numbers
本文介绍了C ++读取数字行的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
阅读数字行并将这些数字存储在向量中的标准方法是什么。
file.in
12
12 9 8 17 101 2
class =h2_lin>解决方案
#include< vector>
#include< fstream>
#include #include< algorithm>
std :: vector< int>数据;
std :: ifstream file(numbers.txt);
std :: copy(std :: istream_iterator< int>(file),std :: istream_iterator< int>(),std :: back_inserter
What's the standard way of reading a "line of numbers" and store those numbers inside a vector.
file.in
12
12 9 8 17 101 2
Should I read the file line by line, split the line with multiple numbers, and store the tokens in the array ?
What should I use for that ?
解决方案
#include <vector>
#include <fstream>
#include <iterator>
#include <algorithm>
std::vector<int> data;
std::ifstream file("numbers.txt");
std::copy(std::istream_iterator<int>(file), std::istream_iterator<int>(), std::back_inserter(data));
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