boost::program_options

boost::program_options 解析命令行，包括多参数命令行解析示例如下：

示例代码：

#include "stdafx.h"

#include <iostream>
#include "boost/program_options.hpp"

namespace bpo = boost::program_options;

std::string showstring(std::string str){
    std::cout << str << std::endl;
    return std::string(str + ";");
}

int _tmain(int argc, _TCHAR* argv[])
{
    bpo::options_description app_options("APP options");
    app_options.add_options()
        ("help,h", "Print this help message and exit.")
        ("num", bpo::value<uint32_t>(), "int")
        ("word", bpo::value<std::vector<std::string>>(),"string")
        ;

    bpo::variables_map options;
    bpo::store(bpo::parse_command_line(argc, argv, app_options), options);

    if (options.count("num"))
    {
        std::cout << "num " << options["num"].as<uint32_t>() << std::endl;
    }
    if (options.count("word"))
    {
        std::vector<std::string> words = options["word"].as<std::vector<std::string>>();
        std::transform(words.begin(), words.end(), words.begin(), showstring);

        for (const auto& itr : words){
            std::cout << "===> " << itr << std::endl;
        }
    }

    getchar();
    return 0;
}

命令行参数输入：

输出结果：