Xiuno BBS 4.0 是 2016 年诞生的，国产、小巧、精悍的 Web 产品，后端基于 PHP + MySQL，前端基于 Bootstrap 4.0 + JQuery 3.1，是一套通用的轻论坛系统。 主程序架构采用函数风格的 MVC，插件机制采用 AOP 机制，大大的简化了程序的复杂度，在同等复杂度的功能实现上比同类产品的代码简洁很多，核心只有 15 个表，非常利于二次开发。(Xiuno BBS was born in 2016 4, domestic, small and lean Web products, PHP + MySQL based back-end, front-end based on Bootstrap 4 + JQuery 3.1, is a universal light forum system. The main program structure adopts the MVC of function style. The plug-in mechanism adopts the AOP mechanism, which greatly simplifies the complexity of the program. It has much simpler code than the similar products in the same complexity function, and the core has 15 tables, which is very conducive to the two development.)