Shulou(Shulou.com)05/31 Report--

This article mainly introduces "how C++ uses Boost library to achieve command line". In daily operation, I believe many people have doubts about how C++ uses Boost library to achieve command line. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how C++ uses Boost library to achieve command line". Next, please follow the editor to study!

First try # include # include / / define the namespace namespace opt = boost::program_options;int main (int argc, char const * argv []) {opt::options_description desc ("Usage: 32-bit port fast scanner\ n\ n options:\ n") Desc.add_options () ("Address,a", opt::value ()-> default_value ("127.0.0.1"), "enter an IP address"), ("StartPort,s", opt::value ()-> default_value (1024), "incoming scan start port"), ("EndPort,e", opt::value ()-> default_value (65535)) "incoming scan end port"), ("Help,h", "pop-up help menu") / / the parsing parameter passes the value to virtual_map opt::variables_map virtual_map; try {opt::store (opt::parse_command_line (argc, argv, desc), virtual_map);} catch (...) {std::cout

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