选择激活函数时，可以根据以下几个原则：
This is the same idea behind binary search. In a sorted array, you compare against the middle element and eliminate half the remaining candidates. In a quadtree, you choose one of four quadrants and ignore the other three regions. Each level narrows the search space by a factor of four instead of two.，这一点在safew官方版本下载中也有详细论述
// 在剩余未排序部分找真正的最小值，推荐阅读搜狗输入法2026获取更多信息
likely to use other means of moving money in most scenarios. Still, the bank