C++ 中的 Lua 表模拟

Question

I started to learn C++ after many years coding in Lua (the only one language I know). Help me please write the same code in C++

ticker_list="GAZP,SBER,GMKN"
period_muvinga={}
period_muvinga.GAZP=23
period_muvinga.SBER=19
period_muvinga.GMKN=20
for sec in string.gmatch(ticker_list,"%a+") do
   local period=period_muvinga[sec]
end

The main question is about 100% analogue of Lua tables in C++.

Answer 1

Ok, here is the equivalent code written in c++

#include <iostream>
#include <map>
#include <string>

int main ()
{
  std::map<std::string, int> period_muvinga;

  period_muvinga["GAZP"] = 23;
  period_muvinga["SBER"] = 19;
  period_muvinga["GMKN"] = 20;

  //  Iterate over all the key,value pairs in map
  //
  for (const auto & p: period_muvinga)
    {
      // Extract key from pair
      std::string ticker = p.first;

      // Extract value from pair
      int period = p.second;

      std::cout << ticker << " = " << period << std::endl;
    }
  return 0;
}

As others have said, std::map is not exactly the same as lua tables. So depending on what you want to do, std::map may or may not fit your needs