create r-tree，use c

ln_rtree
........\Debug
........\.....\ln_rtree.exe
........\.....\ln_rtree.ilk
........\.....\ln_rtree.pdb
........\ln_rtree
........\ln_rtree.sdf
........\ln_rtree.sln
........\ln_rtree.v12.suo
........\........\Debug
........\........\.....\CHFilterRtree.obj
........\........\.....\FilterRTree.obj
........\........\.....\LinkList.obj
........\........\.....\ln_rtree.log
........\........\.....\ln_rtree.tlog
........\........\.....\.............\CL.read.1.tlog
........\........\.....\.............\CL.write.1.tlog
........\........\.....\.............\link.read.1.tlog
........\........\.....\.............\link.write.1.tlog
........\........\.....\.............\ln_rtree.lastbuildstate
........\........\.....\QgramComp.obj
........\........\.....\vc120.idb
........\........\.....\vc120.pdb
........\........\ln_rtree.vcxproj
........\........\ln_rtree.vcxproj.filters
........\........\StrPointInFVC.str

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