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  • 字符串分割函数

    //按字符分割,可以为多个分割符同时分割,例如 split(str, "",[]{})
    vector<string> split(string str, string pattern){
        vector<string> ret;
        if (pattern.empty()) return ret;
        size_t start = 0, index = str.find_first_of(pattern, 0);
        while (index != str.npos){
            if (start != index)
                ret.push_back(str.substr(start, index - start));
            start = index + 1;
            index = str.find_first_of(pattern, start);
        }
        if (!str.substr(start).empty())
            ret.push_back(str.substr(start));
        return ret;
    }
    //按子串分割,将pattern作为一个整体
    vector<string> split2(string str, string pattern){
        vector<string> ret;
        if (pattern.empty()) return ret;
        size_t start = 0, index = str.find(pattern, 0);
        while (index != str.npos){
            if (start != index)
                ret.push_back(str.substr(start, index - start));
            start = index + pattern.size();
            index = str.find(pattern, start);
        }
        if (!str.substr(start).empty())
            ret.push_back(str.substr(start));
        return ret;
    }
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  • 原文地址:https://www.cnblogs.com/haiyang21/p/6940211.html
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