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绝大多数人买苹果的手机配件，应该都是点进来，看看价格，关掉网页去买国产平替。
Now that we can build the tree, let's use it to search. Finding a specific point means starting at the root and asking: which child quadrant contains this coordinate? Then you recurse into that child and ask again. Each level of the tree cuts the search space by roughly three-quarters.
2026-02-28 11:15去年还说去火星，今年要在月球建城市，马斯克是变脸还是有新计划？飞说智行