import scala.io.StdInobject test3 {def main(args: Array[String]): Unit = {val a = StdIn.readInt()// if (a >= 0 && a<=3){println("[0-3]")}// else if (a>=4&&a<=8){println("[4-8]")}// else {println("未匹配")}println(s"用户输入的是:$a")a match {case x if x>=0 && x <=3 =>println("[0-3]")case x if x>=4 && x <=8 =>println("[4-8]")case _ =>println("未匹配")}}}