如何为网页代码添加行号？
时间：2024-11-25 08:49:09
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亲爱的编程学习爱好者，如果你点开了这篇文章，说明你对《如何为网页代码添加行号？
》很感兴趣。本篇文章就来给大家详细解析一下，主要介绍一下，希望所有认真读完的童鞋们，都有实质性的提高。
给代码添加行号
在代码中添加行号可以更轻松地进行阅读和调试。传统方法是使用
<![CDATA[标签，但由于它已被弃用，因此可以使用更现代的方法。</p><p><strong>使用<pre>标签和转义字符</strong></p><p><pre>标签可以保留空白和换行符，但需要将HTML代码中的<和>符号转义为&lt;和&gt;。这种方法较为繁琐。</p><p><strong>使用CSS和<p>标签</strong></p><p>一种更简单的解决方案是使用CSS和<p>标签：</p><pre class="brush:php;toolbar:false"><div id="code" style="font-size: 12px"></div>
<style>
* { margin: 0; padding: 0; }
#code p::before {
content: attr(data-line-number);
min-width: 50px;
text-align: right;
display: inline-block;
padding: 0 5px;
color: #ccc;
}
</style>
<script>
var $code = document.getElementById('code');
`<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>行号</title>
</head>
<body>
<p>测试页面</p>
</body>
</html>`.split('\n').forEach((text, index) => {
var $line = document.createElement('p');
$line.dataset.lineNumber = index + 1;
$line.innerText = text;
$code.appendChild($line);
});
</script></pre><p>今天关于《如何为网页代码添加行号？
》的内容就介绍到这里了，是不是学起来一目了然！想要了解更多关于的内容请关注golang学习网公众号！</p> </div>
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