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How to split a string in C++?

根据特定字符将字符串分开,然后将元素插入矢量的最简单方式是什么?

请不要建议 push. algorithm. 分割

Answer 1

解析字符串有多种方法, 这里有一种使用 substr() 的方法

#include <iostream>
#include <vector>
#include <string>
using namespace std;

int main()
{
    string strLine("Humpty Dumpty sat on the wall");
    string strTempString;
    vector<int> splitIndices;
    vector<string> splitLine;
    int nCharIndex = 0;
    int nLineSize = strLine.size();

    // find indices
    for(int i = 0; i < nLineSize; i++)
    {
        if(strLine[i] ==    )
            splitIndices.push_back(i);
    }
    splitIndices.push_back(nLineSize); // end index

    // fill split lines
    for(int i = 0; i < (int)splitIndices.size(); i++)
    {
        strTempString = strLine.substr(nCharIndex, (splitIndices[i] - nCharIndex));
        splitLine.push_back(strTempString);
        cout << strTempString << endl;
        nCharIndex = splitIndices[i] + 1;
    }

    getchar();

    return 0;
}

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