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我正在試圖通過以下練習從MDN網站學習JavaScript Learn JavaScript這個JavaScript腳本有什麼問題?
這裏是我最終的遊戲代碼。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Number guessing game</title>
<style>
html {
font-family: sans-serif;
}
body {
width: 50%;
max-width: 800px;
min-width: 480px;
margin: 0 auto;
}
.lastResult {
color: white;
padding: 3px;
}
</style>
</head>
<body>
<h1>Number guessing game</h1>
<p>We have selected a random number between 1 and 100. See if you can guess it in 10 turns or less. We'll tell you if your guess was too high or too low.</p>
<div class="form">
<label for="guessField">Enter a guess:</label>
<input type="text" id="guessField" class="guessField" autofocus>
<input type="submit" value="Submit guess" class="guessSubmit">
</div>
<div class="resultParas">
<p class="guesses"></p>
<p class="lastResult"></p>
<p class="lowOrHi"></p>
</div>
</body>
<script>
// Your JavaScript goes here
var randomNumber = Math.floor(Math.random() * 100) + 1;
var guesses = document.querySelector(".guesses");
var lastResult = document.querySelector(".lastResult");
var lowOrHi = document.querySelector(".lowOrHi");
var guessField = document.querySelector(".guessField");
var guessSubmit = document.querySelector(".guessSubmit");
var test; //used for creating new reset button
var count = 1; // counter for counting user input
function checkGuess() {
//alert('checkGuess is called');
var value = Number(guessField.value);
if (count === 1) {
guesses.textContent = "Previous guesses :"
}
guesses.textContent += value + ' ';
if (value === randomNumber) {
lastResult.textContent = "congratulation u successfully guessed the number";
lastResult.style.backgroundColor = "green";
lowOrHi.textContent = "";
left = 1;
setGameOver();
} else if (count === 10) {
lastResult.textContent = "game over"
lastResult.style.backgroundColor = "red";
left = 1;
setGameOver();
} else {
lastResult.textContent = "WRONG";
lastResult.style.backgroundColor = "red";
if (value < randomNumber) {
lowOrHi.textContent = "too low";
} else {
lowOrHi.textContent = "too high";
}
}
count++;
guessField.value = '';
}
guessSubmit.addEventListener("click", checkGuess);
function setGameOver() {
guessField.disabled = true;
guessSubmit.disabled = true;
test = document.createElement('button');
test.textContent = "restart game";
document.body.appendChild(test);
test.addEventListener('click', resetGame);
}
function resetGame() {
count = 1;
var resetParas = document.querySelectorAll('.resultParas');
for (var i = 0; i < resetParas.length; i++) {
resetParas[i].textContent = '';
}
guessField.disabled = false;
guessSubmit.disabled = false;
guessField.value = '';
lastResult.style.backgroundColor = 'white';
randomNumber = Math.floor(Math.random() * 100) + 1;
test.parentNode.removeChild(test);
}
</script>
</html>
但是,當我嘗試運行遊戲和使用重置遊戲按鈕,重新啓動遊戲,然後我不能夠操縱的猜測,使用的textContent和的backgroundColor屬性的lastResult和lowOrHi元素。
請推薦任何其他有用的資源來學習JavaScript。 –
使這個代碼片段可以讓我們嘗試執行你所做的一切。你需要做的最主要的事情就是將其降低到[mcve]。然後每個人都可以專注於什麼不工作。 – Teepeemm
您是否嘗試過使用'.value'而不是'.textContent' –