+__init__(config: Config)
7月初，母亲要回西安处理一套房子的出租事宜，之前的租客刚退租，她需要回去打理。让她独自远行，又刚好在被骗子盯上的档口，我本不情愿，但她执意要去，想到手机上已经完成了安全设置，我便没有强行阻止。
，更多细节参见服务器推荐
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.
For now, Apple isn't saying much, and it's possible I'm overthinking the crumbs they've given us.