1 匹配模式

1.1字符串匹配

package com._51doit.day06.demo

import scala.util.Random

/**
 * FileName: CaseDEmo
 * Author:   多易教育-DOIT
 * Date:     2020/11/6 0006
 * Description: 
 */
object CaseDemo {
  def main(args: Array[String]): Unit = {

    val arr = Array[String]("java", "js", "sql", "scala")
    arr.map(e => e match {
      case "java" => "hls"
      case "js" => "sls"
      case "sql" => "cls"
      case "scala" => "zixue"
      case _ =>
    }).foreach(println)
    /* val index: Int = Random.nextInt(arr.length)
     val e: String = arr(index)
     val value: Any = e match {
       case "java" => "hls"
       case "js" => "sls"
       case "sql" => "cls"
       case "scala" => "zixue"
       case _ =>
     }*/
   // println(value)


  }


}
package com._51doit