To the hardware
The spatial view (the grid of rectangles) and the tree view (the hierarchy of nodes) represent the same structure. Searching for a point means walking down the tree: at each node, you check which of the four children contains your target coordinate and recurse into that child. You never visit the other three.。新收录的资料是该领域的重要参考
，更多细节参见新收录的资料
path: [0, 1, 2, 3, 4, 5, 6, 2, 3, 4, 5, 6, 7, 8]
В рыболовной сети нашли 15-метровую тушу редкого кита20:45。新收录的资料对此有专业解读