#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")("...
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("...
典型的 boost program_options的用法如下: #include <boost/program_options.hpp>usingnamespaceboost::program_options;usingnamespacestd;intmain(intargc,char* argv[])//需要命令行参数{intintValue; options_description opts("Mysql performance options");//增加两个程序选项opts.add_options() ("help,h","...
}//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 <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"); ...
#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> #include <string.h> #include <iostream> #include <fstream> #include using namespace std; using namespace boost; namespace bpo = boost::program_options; /* config.ini: p2p-endpoint = 0.0.0.1:31010 rpc-endpoint...
而program_options库就是用于管理和解析这些命令行选项的。 要使用program_options库,我们首先需要包含相关的头文件: cpp #include <boost/program_options.hpp> 接下来,我们需要定义一个options_description对象,用于描述我们的程序的选项,可以包含多个选项。 cpp namespace po = boost::program_options; po::options...
tprogram_options解析命令行参数示例代码:[cpp] view plain copy #include <iostream> using namespace 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"); desc.add_...
#include <boost/program_options.hpp> using namespace std; int main(int argc, char* argv[]) { using namespace boost::program_options; //声明需要的选项 options_description desc("Allowed options"); desc.add_options() ("help,h", "produce help message") ...