sqlite3，小型的数据库，有三个文件添加到工程中，使用可以添加、删除、创建等等的功能，适合工业控制中小型数据库开发-Sqlite3, small database, there are three files are added to the project, use the function that can add, delete, create, and so on, is suitable for industrial control of small and medium-sized database development