Question

我正在尝试在HTML的脚本标签中创建一个从头到五的Rock / Paper / Scissor游戏。据我所知，一切正常，但是当我运行它时，在控制台中我关闭的脚本标记处收到一条错误消息。

你们可以看看吗，让我知道：

1。）为什么我在结束脚本标签处收到错误消息，以及解决该问题并使代码按我希望的方式运行的我需要做什么？

2。）一般而言，您对我的代码有什么建议吗？我是自学成才，并试图尽可能多地吸收。

//Game parameters to start 
var computerScore = 0
var playerScore = 0

//Game functions
function game() {
  while (computerScore >= 5 && playerScore >= 5) {

    //Computer Selection 
    function computerPlay() {

      let playerSelection = prompt("Make your choice: rock, paper, or scissors!")
      let computerSelection = Math.floor(Math.random() * 3)

      //Player Selection
      if (playerSelection.toLowerCase() == "rock") {
        var playerChoice = 0;
      } else if (playerSelection.toLowerCase() == "paper") {
        var playerChoice = 1;
      } else if (playerSelection.toLowerCase() == "scissors") {
        var playerChoice = 2;
      } else {
        alert("Sorry, that word isn't recognized. Please select rock, paper, or scissors.")
      }

      //Rock
      if (computerSelection == 0) {
        var computerChoice = 0
        //Paper
      } else if (computerSelection == 1) {
        var computerChoice = 1
        //Scissors
      } else if (computerSelection == 2) {
        var computerChoice = 2
      } else {}

      //OUTCOMES 
      if (computerSelection == 0 && playerChoice == 0 || computerSelection == 1 && playerChoice == 1 || computerSelection == 2 && playerChoice == 2) {
        alert("Tie game!")
      } else if (computerSelection == 1 && playerChoice == 0) {
        alert("Paper beats rock. You lose!")
      } else if (computerSelection == 2 && playerChoice == 0) {
        alert("Rock beats scissors. You win!")
      } else if (computerSelection == 0 && playerChoice == 1) {
        alert("Paper beats rock. You win!")
      } else if (computerSelection == 0 && playerChoice == 2) {
        alert("Rock beats scissors. You lose!")
      } else if (computerSelection == 1 && playerChoice == 2) {
        alert("Scissors beat paper. You win!")
      } else if (computerSelection == 2 && playerChoice == 1) {
        alert("Scissors beat paper. You lose!")
      } else {}

      //Increments 
      if (computerSelection > playerChoice) {

        computerScore++
      } else if (computerSelection < playerChoice) {
        playerScore++
      } else {}

      if (computerScore == 5 && playerScore < 5) {
        alert("Computer wins, " + computerScore + " to " + playerScore + "!")
      } else if (playerScore == 5 && computerScore < 5) {
        alert("Player wins, " + playerScore + " to " + computerScore + "!")
      } else {}


    }

    game()

Answer 1

所以这里有几件事，

首先，您的游戏功能没有右括号。

第二，您的游戏函数中的computerPlay函数永远不会被调用（它也没有右括号，但我还是建议将其删除）

第三，当computer / playerScore大于5时触发while条件（第12行），但在第7和8行上将它们设置为0。您可能希望它们小于或等于。

请参阅下面的固定版本。

<!DOCTYPE HTML >
<html>

<body>
  <script>
    //Game parameters to start 
    var computerScore = 0
    var playerScore = 0

    //Game functions
    function game() {
      while (computerScore <= 5 && playerScore <= 5) {

        //Computer Selection 
        let playerSelection = prompt("Make your choice: rock, paper, or scissors!")
        let computerSelection = Math.floor(Math.random() * 3)

        //Player Selection
        if (playerSelection.toLowerCase() == "rock") {
          var playerChoice = 0;
        } else if (playerSelection.toLowerCase() == "paper") {
          var playerChoice = 1;
        } else if (playerSelection.toLowerCase() == "scissors") {
          var playerChoice = 2;
        } else {
          alert("Sorry, that word isn't recognized. Please select rock, paper, or scissors.")
        }

        //Rock
        if (computerSelection == 0) {
          var computerChoice = 0
          //Paper
        } else if (computerSelection == 1) {
          var computerChoice = 1
          //Scissors
        } else if (computerSelection == 2) {
          var computerChoice = 2
        } else {}

        //OUTCOMES 
        if (computerSelection == 0 && playerChoice == 0 || computerSelection == 1 && playerChoice == 1 || computerSelection == 2 && playerChoice == 2) {
          alert("Tie game!")
        } else if (computerSelection == 1 && playerChoice == 0) {
          alert("Paper beats rock. You lose!")
        } else if (computerSelection == 2 && playerChoice == 0) {
          alert("Rock beats scissors. You win!")
        } else if (computerSelection == 0 && playerChoice == 1) {
          alert("Paper beats rock. You win!")
        } else if (computerSelection == 0 && playerChoice == 2) {
          alert("Rock beats scissors. You lose!")
        } else if (computerSelection == 1 && playerChoice == 2) {
          alert("Scissors beat paper. You win!")
        } else if (computerSelection == 2 && playerChoice == 1) {
          alert("Scissors beat paper. You lose!")
        } else {}

        //Increments 
        if (computerSelection > playerChoice) {

          computerScore++
        } else if (computerSelection < playerChoice) {
          playerScore++
        } else {}

        if (computerScore == 5 && playerScore < 5) {
          alert("Computer wins, " + computerScore + " to " + playerScore + "!")
        } else if (playerScore == 5 && computerScore < 5) {
          alert("Player wins, " + playerScore + " to " + computerScore + "!")
        } else {}

      }
    }

    game();
  </script>

</body>

</html>

HTML游戏中的JS无法运行

1 个答案: