运用js，css3实现深沉次的树的表单栏-Use js, css3 achieve deep sub-tree form fields

hadoop的mapreduce初级的几个小案例，包括单词计数、topk、单表关联、多表关联、数据排序、数据去重、数据分组，适合刚接触hadoop的人弄清mapreduce的流程- The primary hadoop mapreduce several small cases, including word count, topk, single-table association, multi-table association, data sorting, data deduplica

在hadoop云平台实现单表关联、多变关联(Implementation of single table Association and variable association on Hadoop cloud platform)

在hadoop MapReduce实现单表关联表连接(Implementation of table connections, projection, difference, and so on in Hadoop MapReduce)