scala 滑动

val str = Seq(1, 2, 3, 4)
val stream: Seq[Seq[Int]] = str.sliding(2).toSeq
println(stream) // Stream(List(1, 2), ?)
val l= str.sliding(2).toList
println(l) // List(List(1, 2), List(2, 3), List(3, 4))

 

来源：oschina

链接：https://my.oschina.net/lemos/blog/4720479