我有以下页面，它的行为完全符合我的要求。
但是，我知道可以通过两种方式更有效地编写页面:
- 首先，也是最重要的，我要重复一个 javascript 函数。这是为了表示在单击特定按钮时应该展开哪些文本，但我知道这两者可以写成一个，因为它们共享相同类型的功能。
- 其次，CSS 很笨拙。我使用
!important来覆盖文本是显示还是隐藏。
有人可以推荐这个页面最 Eloquent 翻译吗？
谢谢!
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
.expand-button {
background-color: #1860ac;
color: white;
border-radius: 5px;
height: 30px;
margin: 15px auto 40px auto;
display: block;
font-family: 'Cabin', sans-serif;
font-size: 1em;
}
.hidden {
display: none;
}
.very-hidden {
display: none!important;
}
.mystyle {
display: block!important;
}
</style>
</head>
<body>
<h2>
First Paragraph
</h2>
<button class="expand-button" id="b1" onclick="expand1()">Read more</button>
<span class="hidden" id="myDIV1"><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed eu magna vitae ipsum dignissim euismod. Curabitur egestas congue elit vitae accumsan. Integer aliquet dictum est, vitae placerat arcu dapibus commodo. Quisque nec libero sed urna tristique mattis sed vel lacus. Praesent ut justo eget elit mattis suscipit. Curabitur ut libero eros. Morbi nec viverra velit. Suspendisse at nulla quis purus luctus laoreet. Nunc euismod ultricies quam vitae mattis. Fusce auctor urna at libero dapibus, sed sollicitudin ex facilisis. Maecenas ultricies nisl sodales lectus ultricies volutpat. Sed pretium turpis vitae dui tincidunt, ac sagittis ante efficitur.</p>
</span>
<h2>
Second Paragraph
</h2>
<button class="expand-button" id="b2" onclick="expand2()">Read more</button>
<span class="hidden" id="myDIV2">
<p>Nunc porttitor, quam vel consectetur feugiat, ipsum justo accumsan urna, non egestas ante ipsum in tellus. Maecenas pretium, velit dictum ultricies convallis, neque justo aliquet dolor, sed tincidunt massa ipsum at justo. Integer auctor auctor pretium. Ut in lacus ex. Suspendisse id placerat sapien, sed placerat dui. Curabitur eget malesuada arcu. Nam fringilla imperdiet mauris, at malesuada dolor tempor sit amet. Nam feugiat mi vel accumsan tristique. Curabitur imperdiet mollis mi vel consequat. Nam sollicitudin, elit sit amet tincidunt consectetur, sapien elit blandit lorem, at semper ipsum enim eget eros. Cras in ultrices dolor. Maecenas a lacus risus. Duis sed leo id est ultricies rhoncus ac sed ex. Fusce commodo consectetur nunc, sed lacinia sem.
</p>
</span>
<script type="text/javascript">
function expand1() {
var element = document.getElementById("myDIV1");
element.classList.toggle("mystyle");
var element = document.getElementById("b1");
element.classList.toggle("very-hidden");
}
function expand2() {
var element = document.getElementById("myDIV2");
element.classList.toggle("mystyle");
var element = document.getElementById("b2");
element.classList.toggle("very-hidden");
}
</script>
</body>
最佳答案
试试这个:
使用相同的 class 来隐藏元素，并使用相同的函数传递一个带有您正在单击的 div 编号的变量，这样你就可以构建 button 和 div 的 id 名称。
function expand(number) {
var id = 'myDIV'+ number
var divElement = document.getElementById(id);
divElement.classList.toggle("mystyle");
var idButton = 'b'+ number
var button = document.getElementById(idButton);
button.classList.toggle("hidden");
}.expand-button {
background-color: #1860ac;
color: white;
border-radius: 5px;
height: 30px;
margin: 15px auto 40px auto;
display: block;
font-family: 'Cabin', sans-serif;
font-size: 1em;
}
.hidden {
display: none;
}
.mystyle {
display: block;
}<body>
<h2>
First Paragraph
</h2>
<button class="expand-button" id="b1" onclick="expand('1')">Read more</button>
<span class="hidden" id="myDIV1"><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed eu magna vitae ipsum dignissim euismod. Curabitur egestas congue elit vitae accumsan. Integer aliquet dictum est, vitae placerat arcu dapibus commodo. Quisque nec libero sed urna tristique mattis sed vel lacus. Praesent ut justo eget elit mattis suscipit. Curabitur ut libero eros. Morbi nec viverra velit. Suspendisse at nulla quis purus luctus laoreet. Nunc euismod ultricies quam vitae mattis. Fusce auctor urna at libero dapibus, sed sollicitudin ex facilisis. Maecenas ultricies nisl sodales lectus ultricies volutpat. Sed pretium turpis vitae dui tincidunt, ac sagittis ante efficitur.</p>
</span>
<h2>
Second Paragraph
</h2>
<button class="expand-button" id="b2" onclick="expand('2')">Read more</button>
<span class="hidden" id="myDIV2">
<p>Nunc porttitor, quam vel consectetur feugiat, ipsum justo accumsan urna, non egestas ante ipsum in tellus. Maecenas pretium, velit dictum ultricies convallis, neque justo aliquet dolor, sed tincidunt massa ipsum at justo. Integer auctor auctor pretium. Ut in lacus ex. Suspendisse id placerat sapien, sed placerat dui. Curabitur eget malesuada arcu. Nam fringilla imperdiet mauris, at malesuada dolor tempor sit amet. Nam feugiat mi vel accumsan tristique. Curabitur imperdiet mollis mi vel consequat. Nam sollicitudin, elit sit amet tincidunt consectetur, sapien elit blandit lorem, at semper ipsum enim eget eros. Cras in ultrices dolor. Maecenas a lacus risus. Duis sed leo id est ultricies rhoncus ac sed ex. Fusce commodo consectetur nunc, sed lacinia sem.
</p>
</span>
</body>希望这对你有帮助:)
关于javascript - 如何有效地多次使用切换按钮？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49867401/