執(zhí)行如下代碼：

package com.yrz.spark.scala.base

/**
  * <Description> <br>
  * @author yaj<br>
  * @version 1.0<br>
  * @CreateDate 2018-01-12 17:34 <br>
  * @see com.yrz.spark.scala.base <br>
  */
object HelloScala {
  /**
    * @param args
    */
  def main(args: Array[String]): Unit = {
    println("Hello Scala")  //在控制臺(tái)打印Hello Scala 字符串并且換行
    println(args.length)
  }
}

image.png

image.png

打印結(jié)果如下：

Hello Scala
3

Process finished with exit code 0