JavaScript猜词游戏Bug修复：解决重复猜对字母导致计数错误的Bug

// Set a maximum number of tries
var maximumTries = 10; 

// Create an array of words
var words = [
    "quail",
    "chicken",
    "kookaburra",
    "parrot"
];

// Pick a random word
var word = words[Math.floor(Math.random() * words.length)];

// Set up the answer array 
var answerArray = [];
for (var i = 0; i < word.length; i++) {
    answerArray[i] = "_";
}
var remainingLetters = word.length;

// This will hold all the letters tried
var guessAll = "";

// The game loop
while (remainingLetters >= 0 && guessAll.length < maximumTries) {
    // Show the player their progress
    alert(answerArray.join(" "));

    // Get a guess from the player
    var guess = prompt("Guess a letter, or click Cancel to stop playing.");
    guessAll += guess; // 记录所有尝试过的字母
    guess = guess.toLowerCase();

    if (guess === null) {
        // Exit the game loop
        break;
    } else if (guess.length !== 1) {
        alert("Please enter a single letter.");
    } else {
        // 核心循环：检查玩家的猜测
        for (var j = 0; j < word.length; j++) {
            if (word[j] === guess) { // 如果猜对了
                answerArray[j] = guess; // 更新答案数组
                remainingLetters--; // 递减剩余字母
            }
        }
    }
}

// Show the answer and congratulate the player
alert(answerArray.join(" "));
alert("Good job! The answer was " + word);

if (word[j] === guess) {
    answerArray[j] = guess;
    remainingLetters--;
}

// ... (之前的代码保持不变) ...

    else {
        // 核心循环：检查玩家的猜测
        for (var j = 0; j < word.length; j++) {
            // 修正后的条件：只有当字母匹配且该位置尚未被揭示时，才更新并递减
            if (word[j] === guess && answerArray[j] === "_") { 
                answerArray[j] = guess; // 更新答案数组
                remainingLetters--;     // 递减剩余字母
            }
        }
    }

// ... (之后的代码保持不变) ...

<script>

// Set a maximum number of tries
var maximumTries = 10; 

// Create an array of words
var words = [
    "quail",
    "chicken",
    "kookaburra",
    "parrot"
];

// Pick a random word
var word = words[Math.floor(Math.random() * words.length)];

// Set up the answer array 
var answerArray = [];
for (var i = 0; i < word.length; i++) {
    answerArray[i] = "_";
}
var remainingLetters = word.length; // 初始化剩余字母数量

// This will hold all the letters tried
var guessAll = "";

// The game loop
while (remainingLetters > 0 && guessAll.length < maximumTries) { // 修正循环条件：当remainingLetters为0时游戏结束
    // Show the player their progress
    alert(answerArray.join(" "));

    // Get a guess from the player
    var guess = prompt("Guess a letter, or click Cancel to stop playing.");

    if (guess === null) {
        // Exit the game loop
        break;
    } 

    guess = guess.toLowerCase(); // 将猜测转换为小写
    guessAll += guess; // 记录所有尝试过的字母，放在转换小写之后以确保一致性

    if (guess.length !== 1) {
        alert("Please enter a single letter.");
    } else {
        var foundLetter = false; // 标志位，用于判断本次猜测是否找到新字母
        for (var j = 0; j < word.length; j++) {
            // 修正后的条件：只有当字母匹配且该位置尚未被揭示时，才更新并递减
            if (word[j] === guess && answerArray[j] === "_") { 
                answerArray[j] = guess; // 更新答案数组
                remainingLetters--;     // 递减剩余字母
                foundLetter = true;     // 标记找到了新字母
            }
        }

        // 可选：如果需要，可以在这里添加逻辑来判断猜测是否正确但没有找到新字母（例如，已经猜过的字母）
        // if (!foundLetter && word.includes(guess) && !answerArray.includes("_")) {
        //     alert("You already guessed that letter correctly!");
        // } else if (!foundLetter && !word.includes(guess)) {
        //     // 如果需要，可以减少尝试次数 maximumTries
        // }
    }
}

// 游戏结束后的判断
alert(answerArray.join(" "));
if (remainingLetters === 0) {
    alert("Congratulations! You guessed the word: " + word);
} else {
    alert("You ran out of tries! The word was: " + word);
}

</script>