万岳教育的web+后台管理系统。万岳教育系统(wanyue-education)，自主研发集知识付费、直播授课、在线教育功能为一体的在线/直播/题库/考试(exam)的教育平台系统

PHP、MySQL分库分表中间件，需要依赖PDO，PHP分库分表，支持协程（PHP, MySQL sharding library and sharding table middleware, need to rely on PDO, support coroutines.）

UsualTool Framework (UT) is based on PHP multi-end development framework, class library perfect, suitable for the development of various types of applications.