The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.
Beijing in October unveiled a three-year action plan targeting 28 million charging facilities nationwide by the end of 2027, with public charging capacity exceeding 300 million kilowatts.
，这一点在夫子中也有详细论述
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Rachel Stonehouse,BBC West Investigationsand