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 
     
       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
      
       (), "int")19         ("word", bpo::value
       
        
         >(),"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
         
          () << std::endl;28     }29     if (options.count("word"))30     {31         std::vector
          
            words = options["word"].as
           
            
             >();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：