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：
1 #include "stdafx.h" 2 3 #include <iostream> 4 #include "boost/program_options.hpp" 5 6 namespace bpo = boost::program_options; 7 8 std::string showstring(std::string str){ 9 std::cout << str << std::endl; 10 return std::string(str + ";"); 11 } 12 13 int _tmain(int argc, _TCHAR* argv[]) 14 { 15 bpo::options_description app_options("APP options"); 16 app_options.add_options() 17 ("help,h", "Print this help message and exit.") 18 ("num", bpo::value<uint32_t>(), "int") 19 ("word", bpo::value<std::vector<std::string>>(),"string") 20 ; 21 22 bpo::variables_map options; 23 bpo::store(bpo::parse_command_line(argc, argv, app_options), options); 24 25 if (options.count("num")) 26 { 27 std::cout << "num " << options["num"].as<uint32_t>() << std::endl; 28 } 29 if (options.count("word")) 30 { 31 std::vector<std::string> words = options["word"].as<std::vector<std::string>>(); 32 std::transform(words.begin(), words.end(), words.begin(), showstring); 33 34 for (const auto& itr : words){ 35 std::cout << "===> " << itr << std::endl; 36 } 37 } 38 39 getchar(); 40 return 0; 41 }
命令行参数输入：
输出结果：
