解析以逗号分隔的std :: string [英] Parsing a comma-delimited std::string

问题描述

如果我有一个std :: string包含逗号分隔的数字列表，最简单的方法来解析数字并将它们放在整数数组中？

If I have a std::string containing a comma-separated list of numbers, what's the simplest way to parse out the numbers and put them in an integer array?

我不想把这个概括到解析别的东西。只是一个简单的逗号分隔的整数，如1,1,1,1,2,1,1,1,0字符串。

I don't want to generalise this out into parsing anything else. Just a simple string of comma separated integer numbers such as "1,1,1,1,2,1,1,1,0".

推荐答案

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

int main()
{
    std::string str = "1,2,3,4,5,6";
    std::vector<int> vect;

    std::stringstream ss(str);

    int i;

    while (ss >> i)
    {
        vect.push_back(i);

        if (ss.peek() == ',')
            ss.ignore();
    }

    for (i=0; i< vect.size(); i++)
        std::cout << vect.at(i)<<std::endl;
}

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