k-d树（k-dimensional树的简称），是一种分割k维数据空间的数据结构。主要应用于多维空间关键数据的搜索（如：范围搜索和最近邻搜索）。用java实现，可直接运行-kd-tree (k-dimensional tree for short), is a partition the data structure of k-dimensional data space. Mainly used in the search of the key data of the multidimensi

用java写kd树，练习而已还请大家多多指教-Kd tree with java write, practice it also please exhibitions