#include<boost/program_options.hpp>namespacepo=boost::program_options;intmain(intargc,char*argv[]){// 构造选项描述器,参数作为抬头显示po::options_descriptiondesc("Allowed options");// 为描述器添加选项,这里的help选项就是简单无参的,只是一个开关作用,
在Boost.Program_options 中接受空值,可以通过使用po::value<>和po::optional<>类型来实现。 首先,需要包含以下头文件: 代码语言:cpp 复制 #include<boost/program_options.hpp> 然后,可以使用以下代码来定义接受空值的选项: 代码语言:cpp 复制 namespacepo=boost::program_options;po::options_descriptiondesc("...
}//config 从配置文件中读取,vm中key一旦设置,后续设置无效auto config_file=vm["config"].as<std::string>();//check config_file exist TODOpo::options_description _config; _config.add_options() ("size,-s",po::value<int>(),"show size info"); po::store(po::parse_config_file<char>(con...
#include<iostream>usingnamespacestd;#include<boost/program_options.hpp>namespacepo = boost::program_options;intmain(intargc,char*argv[]){//int level;po::options_descriptiondesc("Allowed options"); desc.add_options() ("help","produce help message")//("help,h", "produce help message")("...
#include <boost/program_options.hpp> namespacepo = boost::program_options; intmain(intargc,char** argv) { intcompression = -1; po::options_description desc("Allow options"); desc.add_options() ("help","produce help message") ("compression", po::value<int>(),"set compression level"...
import <boost/program_options.hpp>; int main(int argc, char** argv) { namespace po = boost::program_options; po::options_description desc; desc.add_options() ("stringtest", po::value<std::string>()->implicit_value("test"), "string test") ...
以下是一些使用boost::program_options指定多个标志的示例代码: 代码语言:txt 复制 #include <boost/program_options.hpp> #include <iostream> namespace po = boost::program_options; int main(int argc, char* argv[]) { int option1; std::string option2; po::options_description desc("Allowed options...
#include <boost/program_options.hpp> usingnamespacestd; namespacebpo=boost::program_options; namespaceipfs { namespacedetail{ enumSUB_CMD{ INIT=1, DAEMON, ADD, OBJECT, CAT, GET, LS, HELP, UNKNOW, }; SUB_CMDcmd_parser(intargc,char**argv,vector<string>&item) { ...
#include <boost/program_options.hpp> namespace bpo = boost::program_options; int main(int argc, char const *argv[]) { //步骤一: 构造选项描述器和选项存储器 //选项描述器,其参数为该描述器的名字 bpo::options_description opts("all options"); ...
tprogram_options解析命令行参数示例代码: [cpp]view plaincopy #include <iostream> usingnamespace std; #include <boost/program_options.hpp> namespace po = boost::program_options; int main(int argc,char*argv[]) { //int level; po::options_description desc("Allowed options"); ...