A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.
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。快连下载安装对此有专业解读
对此，波波倒是很坦然：“我家庭条件不好，本来就是从零开始的，大不了再回到零，没什么大不了。”
Мерц резко сменил риторику во время встречи в Китае09:25