local str = "{\"num\": 11, \"obj\":{\"a\":12, \"b\":13}, \"array\":[1314,520]}" local buff = JsonBuff:new(str) local jobj = json_parser(buff) if jobj then -- C++ returns the parent class, need convert to subclass obj = json_to_obj(jobj) print("num:" .. obj:getInt("num") .. "\n") local str = json_write(jobj, true) print(str) else print("parser error:" .. json_error(buff)) end local json = require "jsonlib/json" local tab = json.decode(str) -- json to lua table local jstr = json.encode(tab) -- lua table to json print(jstr)