scala 写石头剪刀布游戏

好的，以下是一个简单的 Scala 石头剪刀布游戏：

import scala.io.StdIn

object RockPaperScissors {
  def main(args: Array[String]): Unit = {
    val validChoices = Seq("rock", "paper", "scissors")
    var playerScore = 0
    var computerScore = 0
    var round = 1

    while (round <= 3) {
      println(s"Round $round")
      print("Enter your choice (rock, paper, or scissors): ")
      val playerChoice = StdIn.readLine().toLowerCase.trim

      if (!validChoices.contains(playerChoice)) {
        println("Invalid choice. Please enter rock, paper, or scissors.")
      } else {
        val computerChoice = validChoices(scala.util.Random.nextInt(validChoices.length))
        println(s"Computer chose $computerChoice")

        if (playerChoice == computerChoice) {
          println("It's a tie!")
        } else if ((playerChoice == "rock" && computerChoice == "scissors") ||
                   (playerChoice == "paper" && computerChoice == "rock") ||
                   (playerChoice == "scissors" && computerChoice == "paper")) {
          println("You win!")
          playerScore += 1
        } else {
          println("Computer wins!")
          computerScore += 1
        }

        round += 1
      }
    }

    println(s"Final score: You $playerScore - $computerScore Computer")
  }
}

该游戏有三个回合，每回合玩家需要输入自己的选择（石头、剪刀或布），然后与计算机进行比较，决定胜利者。最后，输出总分数。