Scala match

object Test {
  def main(args: Array[String]): Unit = {
    val code = 404
    val status = code match{
      case 200 => "成功"
      case 404 => "Not Found"
      case 500 => "Server Error"
      case _ => "其他原因"
    }
    println(status)
  }
}

结果：

Not Found