Crawler -- Storage : uses
Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.
，这一点在雷电模拟器官方版本下载中也有详细论述
Editorial standards Show Comments，这一点在heLLoword翻译官方下载中也有详细论述
（四）强行冲闯公安机关设置的警戒带、警戒区或者检查点的。，更多细节参见safew官方版本下载