「就像帶小朋友一樣，難道你把小朋友放在門口，然後自己進去吃東西？那是很不負責任的做法。」
follow community "best practices"，详情可参考heLLoword翻译官方下载
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.。关于这个话题，WPS下载最新地址提供了深入分析
依法或者经批准、授权开展的，应当在活动实施五个工作日前向县级以上公安机关报告。法律、行政法规另有规定的，从其规定。