目录一、概述二、代码三、结果一、概述  PCL中的pcl::octree::OctreePointCloudChangeDetector函数能够实现同时构建八叉树并完成空间变化检测。二、代码#include<iostream>#include<pcl/io/pcd_io.h>#include<pcl/point_types.h>#include<pcl/octree/oc