我是HTML的初学者，我正试图在我的HTML大学项目每日单词游戏中设置一个计时器，显示到第二天的剩余时间和单词。我找到了一个W3Schools计时器教程，但它对我不起作用，因为它一直到固定日期。我的代码如下：
<!DOCTYPE html>
<html>
<head>
<link rel="icon" href="images/tabIcon.ico">
<title>Daily WordGame</title>
<style>
h1 {
font-family: Tahoma, sans-serif;
text-align: center;
}
p {
font-size: large;
text-align: center;
}
</style>
</head>
<body>
<h1>Welcome to your daily source of educational fun</h1>
<hr>
<p style="font-size: large;">Everyday you have a chance of guessing a different word.
</p>
<a href="about.html">Go to about</a>
<p>this is a second text</p>
<ul>
<li>Boats</li>
<li>Cars</li>
<ul>
<li>Buggati</li>
<table>
<tr>
<td>Price</td>
<td>Top speed</td>
<td>0-100</td>
<td>Horse Power</td>
</tr>
<tr>
<td>3.300.000$</td>
<td>420km/h</td>
<td>2.2s</td>
<td>1480</td>
</tr>
</table>
<img src="images/car.jpg" style="width: 500px;height:300px;">
</ul>
<li>Trucks</li>
</ul>
</body>
<html>
添加一个span或任何id为timer的文本元素
<span id="timer">Time until next word: </span>
并添加JavaScript代码以获得倒计时
<script>
var now = new Date();
// If you want another time, set it here with javascrip Date API
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
var tomorrow = new Date().setDate(now.getDate() + 1);
var timer = document.getElementById("timer");
// Update the count down every 1 second
setInterval(() => {
// Fill in with the time until tomorrow
var time = new Date(tomorrow - now);
var hours = time.getHours();
var minutes = time.getMinutes();
var seconds = time.getSeconds();
// Format the time to add a leading 0 if less than 10
function fillZero(n) {
if (n < 10) {
return "0" + n;
} else return n.toString();
}
timer.innerText = "Time until next word: " + "0d " + fillZero(hours) + "h " + fillZero(minutes) + "m " + fillZero(seconds) + "s";
}, 1000);
</script>
所以用HTML修改的代码是
<!DOCTYPE html>
<html>
<head>
<link rel="icon" href="images/tabIcon.ico">
<title>Daily WordGame</title>
<style>
h1 {
font-family: Tahoma, sans-serif;
text-align: center;
}
p {
font-size: large;
text-align: center;
}
</style>
</head>
<body>
<h1>Welcome to your daily source of educational fun</h1>
<hr>
<p style="font-size: large;">Everyday you have a chance of guessing a different word.
</p>
<a href="about.html">Go to about</a>
<p>this is a second text</p>
<span id="timer">Time until next word: </span>
<ul>
<li>Boats</li>
<li>Cars</li>
<ul>
<li>Buggati</li>
<table>
<tr>
<td>Price</td>
<td>Top speed</td>
<td>0-100</td>
<td>Horse Power</td>
</tr>
<tr>
<td>3.300.000$</td>
<td>420km/h</td>
<td>2.2s</td>
<td>1480</td>
</tr>
</table>
<img src="images/car.jpg" style="width: 500px;height:300px;">
</ul>
<li>Trucks</li>
</ul>
<script>
var now = new Date();
// If you want another time, set it here with javascrip Date API
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
var tomorrow = new Date().setDate(now.getDate() + 1);
var timer = document.getElementById("timer");
// Update the count down every 1 second
setInterval(() => {
// Fill in with the time until tomorrow
var time = new Date(tomorrow - now);
var hours = time.getHours();
var minutes = time.getMinutes();
var seconds = time.getSeconds();
// Format the time to add a leading 0 if less than 10
function fillZero(n) {
if (n < 10) {
return "0" + n;
} else return n.toString();
}
timer.innerText = "Time until next word: " + "0d " + fillZero(hours) + "h " + fillZero(minutes) + "m " + fillZero(seconds) + "s";
}, 1000);
</script>
</body>
<html>