scala Array 算子
++: 和 +:
val arr3 = arr1 ++: arr2
//先导包
scala> import scala.collection.mutable.ArrayBuffer
import scala.collection.mutable.ArrayBuffer
scala> val arr1 = Array(1, 2, 3,5)
arr1: Array[Int] = Array(1, 2, 3, 5)
scala> val arr2 = ArrayBu
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2021-07-12 19:12:06 ·
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