They are almost the same: they share the same underlying array. You do get a copy of the little (ptr, len, capacity) struct which is what a slice is.
为什么？因为国内母港航线几乎全是5-6天的短航线，要配合国人的短假习惯。
，这一点在搜狗输入法2026中也有详细论述
OsmAnd identifies the clusters containing your start and target points.
Why hide such a handsome piece of handiwork?