notes: unordered_map:

 

https://blog.csdn.net/Cypress1010/article/details/53669409

 

 

#include<unordered_map>





std::unordered_map< std::string,std::vector<float>  > bins_;





 const auto& bins =  json_config.at ("bin_list");
    for(auto bin_it = bins.begin(); bin_it != bins.end(); ++bin_it)
    {
      const std::string& bin_id = bin_it.key();
      const std::vector<float>& bin_param = bin_it.value();
      bins_.insert(std::make_pair(bin_id,bin_param));
    }

    for(auto it : bins_)
    {
      std::cout<<"bin_id:"<<it.first<<std::endl;
      auto i = it.second;
      std::cout
      <<"x:"
      <<i[0]
      <<" y:"
      <<i[1]
      <<" z:"
      <<i[2]
      <<std::endl;
    }

 

result: