作为毕业设计写的社区核心机制~以树型分布为主题,提供各个接口以达到扩展~利用AJAX呈现最佳交互,可作为深层社区发展的基础作品-design was made as part of the graduation of community-core mechanism for the distribution of the tree theme, provide various interfaces to achieve expansion of the use of AJAX-best inte