scala-数组/列表

import scala.collection.mutable.ArrayBuffer

var ary=Array(1,2,3)

println(ary.mkString)

println(ary(1))//取出第一个元素

println(ary.toBuffer)//转化成ArrayBuffer

var aryb=ArrayBuffer(1,2,3)

println(aryb.toString)

println(aryb.mkString)

println(aryb(1))//取出第一个元素

println(aryb.toArray)//转化成ArrayBuffer