c++写toml一级、二级目录

一级目录one
二级目录second

【one】
waiting_time = 1

【one.second】
time = 2

读取toml文件

// 如果toml文件中waiting_time子项有数值，直接给waiting_time_ 赋值，没有则赋初值waiting_time_
waiting_time_ = toml::find_or<std::int64_t>( v, "waiting_time", waiting_time_); 

time_ = toml::find_or<std::int64_t>( v.at("second"), "time", time_);

写入toml文件

toml::basic_value<toml::preserve_comments> v_waiting_time(waiting_time_, { " waiting time / 等待时间(ms)" });

// 插入一级目录
toml::basic_value<toml::preserve_comments> ret{
                { "waiting_time", v_waiting_time }
            };

// 插入二级目录
toml::basic_value<toml::preserve_comments> v_time(time_, { " time / 时间(ms)" });

toml::basic_value<toml::preserve_comments> time{
                { "time", v_time}
            };
toml::basic_value<toml::preserve_comments> ret{ 
				{ "second", time} 
			};