复制数组

package main

object Test {

  def main(args: Array[String]): Unit = {

    val arrInt = Array(1, 2, 3, 4, 5);
    println(arrInt.mkString(" "));
    //1 2 3 4 5

    val newArray = Array.ofDim[Int](6);
    println(newArray.mkString(" "));
    //0 0 0 0 0 0

    
    Array.copy(arrInt, 0, newArray, 0, arrInt.length);
    println(newArray.mkString(" "));
    //1 2 3 4 5 0
  }
}