论坛程序推荐，区别

github按forum关键字排序

https://nodebb.org/ Node.js 

https://github.com/flarum/flarum PHP 

discuz

参考

https://www.zhihu.com/question/20655704

https://www.zhihu.com/question/24600058

https://www.v2ex.com/t/378398