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《HTML 简易速速上手小册》第10章：HTML 的维护与优化（2024 最新版）

《HTML 简易速速上手小册》第10章：HTML 的维护与优化（2024 最新版）_第1张图片

文章目录

  • 10.1 网页性能优化
    • 10.1.1 基础知识
    • 10.1.2 案例 1：优化网页图像
    • 10.1.3 案例 2：使用延迟加载优化性能
    • 10.1.4 案例 3：优化 CSS 和 JavaScript 的加载
  • 10.2 SEO 最佳实践
    • 10.2.1 基础知识
    • 10.2.2 案例 1：创建一个 SEO 友好的博客页面
    • 10.2.3 案例 2：为产品页面优化 SEO
    • 10.2.4 案例 3：为本地业务优化 SEO
  • 10.3 HTML 代码的维护与更新
    • 10.3.1 基础知识
    • 10.3.2 案例 1：重构旧的 HTML 页面
    • 10.3.3 案例 2：添加注释和改进代码结构
    • 10.3.4 案例 3：定期审查和更新网站内容

10.1 网页性能优化

10.1.1 基础知识

  • 优化的目标：网页性能优化的目的是减少页面的加载时间，提高用户体验。这涉及到减少文件大小、优化资源加载顺序和减少服务器请求。
  • 图像优化：图像通常是网页上最大的资源。优化图像，比如通过压缩、选择正确的格式和尺寸，可以显著减少加载时间。
  • 减少HTTP请求：每个网页元素（如图片、样式表、脚本）都会产生一个HTTP请求。减少这些请求的数量可以提高网页性能。

10.1.2 案例 1：优化网页图像

我们将创建一个页面，其中包含多个优化过的图像。

DOCTYPE html>
<html>
<head>
    <title>图像优化页面title>
head>
<body>
    <h1>优化后的图像展示h1>
    <img src="optimized-image1.jpg" alt="小尺寸图像1">
    <img src="optimized-image2.jpg" alt="小尺寸图像2">
    <img src="optimized-image3.jpg" alt="小尺寸图像3">
body>
html>

在这个示例中，假设 optimized-image1.jpg, optimized-image2.jpg, 和 optimized-image3.jpg 是原始图像的压缩版本，使用了更小的尺寸和优化后的格式。

10.1.3 案例 2：使用延迟加载优化性能

在这个案例中，我们将使用延迟加载技术来优化图像和视频的加载。

DOCTYPE html>
<html>
<head>
    <title>延迟加载示例title>
head>
<body>
    <h1>滚动查看图像h1>
    <img src="placeholder.jpg" data-src="large-image1.jpg" alt="大尺寸图像1" class="lazy-load">
    <img src="placeholder.jpg" data-src="large-image2.jpg" alt="大尺寸图像2" class="lazy-load">
    <video controls class="lazy-load">
        <source data-src="large-video.mp4" type="video/mp4">
    video>

    <script>
        document.addEventListener("DOMContentLoaded", function() {
            var lazyImages = [].slice.call(document.querySelectorAll("img.lazy-load"));
            var lazyVideos = [].slice.call(document.querySelectorAll("video.lazy-load"));

            if ("IntersectionObserver" in window) {
                let lazyMediaObserver = new IntersectionObserver(function(entries, observer) {
                    entries.forEach(function(entry) {
                        if (entry.isIntersecting) {
                            if (entry.target.tagName === "IMG") {
                                let img = entry.target;
                                img.src = img.dataset.src;
                                img.classList.remove("lazy-load");
                            } else if (entry.target.tagName === "VIDEO") {
                                let video = entry.target;
                                video.children[0].src = video.children[0].dataset.src;
                                video.load();
                            }
                            lazyMediaObserver.unobserve(entry.target);
                        }
                    });
                });

                lazyImages.concat(lazyVideos).forEach(function(lazyMedia) {
                    lazyMediaObserver.observe(lazyMedia);
                });
            }
        });
    script>
body>
html>

10.1.4 案例 3：优化 CSS 和 JavaScript 的加载

这个案例展示如何通过优化HTML结构来提高加载效率，尽管我们不涉及CSS和JavaScript代码本身。

DOCTYPE html>
<html>
<head>
    <title>CSS和JavaScript加载优化title>
    <link rel="stylesheet" href="style.css" media="none" onload="if(media!='all')media='all'">
    <noscript><link rel="stylesheet" href="style.css">noscript>
head>
<body>
    <h1>优化后的网页h1>
    <p>这是一个示例页面。p>
    <script src="script.js" defer>script>
body>
html>

在这些案例中，我们展示了几种不同的方法来优化网页的性能，包括图像优化、延迟加载和优化资源加载顺序。这些技巧可以显著提高网页的加载速度，提升用户体验。

《HTML 简易速速上手小册》第10章：HTML 的维护与优化（2024 最新版）_第2张图片

10.2 SEO 最佳实践

10.2.1 基础知识

  • SEO的重要性：搜索引擎优化（SEO）是确保网站在搜索引擎结果中排名靠前的过程。良好的SEO可以提高网站的可见性，吸引更多访问者。
  • 使用语义化标签：HTML5引入的语义化标签（如
    ,
    ,
    ,
    ）对提高SEO效果至关重要，因为它们帮助搜索引擎更好地理解网页内容。
  • 元标签和标题的优化：</code>和<code><meta></code>标签（特别是描述<code><meta name="description"></code>）对于搜索引擎了解网页内容非常重要。</li> </ul> <h3>10.2.2 案例 1：创建一个 SEO 友好的博客页面</h3> <p>我们将构建一个博客页面，优化其标题、描述和结构，以提高其在搜索引擎中的排名。</p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>我的博客 - 关于Web开发的最新信息<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>description<span class="token punctuation">"</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>我的博客提供关于最新Web开发技术和趋势的深入分析和讨论<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>我的博客<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>nav</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 导航链接 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>nav</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>article</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h2</span><span class="token punctuation">></span></span>HTML5新特性全解<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h2</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>发布于2024年1月28日<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>文章内容...<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>article</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 更多文章 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>footer</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 页脚信息 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>footer</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <h3>10.2.3 案例 2：为产品页面优化 SEO</h3> <p>在这个例子中，我们将为一个产品页面进行SEO优化，包括正确的元标签和结构化数据。</p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>XYZ相机 - 高性能摄影<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>description<span class="token punctuation">"</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>XYZ相机 - 专业级摄影设备，提供高质量的图像和视频拍摄<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token comment"><!-- 结构化数据 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>application/ld+json<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token script"><span class="token language-javascript"> <span class="token punctuation">{</span> <span class="token string">"@context"</span><span class="token operator">:</span> <span class="token string">"http://schema.org"</span><span class="token punctuation">,</span> <span class="token string">"@type"</span><span class="token operator">:</span> <span class="token string">"Product"</span><span class="token punctuation">,</span> <span class="token string">"name"</span><span class="token operator">:</span> <span class="token string">"XYZ相机"</span><span class="token punctuation">,</span> <span class="token string">"image"</span><span class="token operator">:</span> <span class="token string">"xyz-camera.jpg"</span><span class="token punctuation">,</span> <span class="token string">"description"</span><span class="token operator">:</span> <span class="token string">"专业级摄影设备，提供高质量的图像和视频拍摄"</span><span class="token punctuation">,</span> <span class="token string">"brand"</span><span class="token operator">:</span> <span class="token string">"XYZ"</span><span class="token punctuation">,</span> <span class="token string">"aggregateRating"</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token string">"@type"</span><span class="token operator">:</span> <span class="token string">"AggregateRating"</span><span class="token punctuation">,</span> <span class="token string">"ratingValue"</span><span class="token operator">:</span> <span class="token string">"4.9"</span><span class="token punctuation">,</span> <span class="token string">"reviewCount"</span><span class="token operator">:</span> <span class="token string">"89"</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span> </span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>XYZ相机<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h2</span><span class="token punctuation">></span></span>产品特点<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h2</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>描述...<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h2</span><span class="token punctuation">></span></span>用户评价<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h2</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 用户评价 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>footer</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 页脚信息 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>footer</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <h3>10.2.4 案例 3：为本地业务优化 SEO</h3> <p>在这个案例中，我们将为一个本地业务创建一个SEO优化的网页，使用本地关键词和结构化数据。</p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>阳光咖啡馆 - 你在城市中的休息角落<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>description<span class="token punctuation">"</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>阳光咖啡馆提供最好的咖啡和甜点，是你在繁忙城市中的完美休息地<span class="token punctuation">"</span></span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>application/ld+json<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token script"><span class="token language-javascript"> <span class="token punctuation">{</span> <span class="token string">"@context"</span><span class="token operator">:</span> <span class="token string">"http://schema.org"</span><span class="token punctuation">,</span> <span class="token string">"@type"</span><span class="token operator">:</span> <span class="token string">"CafeOrCoffeeShop"</span><span class="token punctuation">,</span> <span class="token string">"name"</span><span class="token operator">:</span> <span class="token string">"阳光咖啡馆"</span><span class="token punctuation">,</span> <span class="token string">"image"</span><span class="token operator">:</span> <span class="token string">"sunshine-cafe.jpg"</span><span class="token punctuation">,</span> <span class="token string">"address"</span><span class="token operator">:</span> <span class="token punctuation">{</span> <span class="token string">"@type"</span><span class="token operator">:</span> <span class="token string">"PostalAddress"</span><span class="token punctuation">,</span> <span class="token string">"streetAddress"</span><span class="token operator">:</span> <span class="token string">"123阳光路"</span><span class="token punctuation">,</span> <span class="token string">"addressLocality"</span><span class="token operator">:</span> <span class="token string">"城市"</span><span class="token punctuation">,</span> <span class="token string">"addressRegion"</span><span class="token operator">:</span> <span class="token string">"省份"</span><span class="token punctuation">,</span> <span class="token string">"postalCode"</span><span class="token operator">:</span> <span class="token string">"123456"</span> <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token string">"telephone"</span><span class="token operator">:</span> <span class="token string">"+123456789"</span> <span class="token punctuation">}</span> </span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>阳光咖啡馆<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h2</span><span class="token punctuation">></span></span>我们的故事<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h2</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>描述...<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h2</span><span class="token punctuation">></span></span>菜单<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h2</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 菜单项 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>footer</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 页脚信息，包括地址和联系方式 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>footer</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <p>通过这些案例，你将学会如何利用HTML的特性来优化网页的SEO，从而提高其在搜索引擎结果中的排名。有效的SEO策略可以显著提高网站的可见性和流量。</p> <p><a href="http://img.e-com-net.com/image/info8/50fbeefc2fc04207bc095937c0055935.jpg" target="_blank"><img src="http://img.e-com-net.com/image/info8/50fbeefc2fc04207bc095937c0055935.jpg" alt="《HTML 简易速速上手小册》第10章：HTML 的维护与优化（2024 最新版）_第3张图片" width="540" height="675" style="border:1px solid black;"></a></p> <hr> <h2>10.3 HTML 代码的维护与更新</h2> <h3>10.3.1 基础知识</h3> <ul> <li><strong>代码维护的重要性</strong>：随着网站的不断发展和技术的更新，定期维护HTML代码变得至关重要。良好维护的代码更易于理解、更新和扩展。</li> <li><strong>代码组织</strong>：逻辑清晰和结构良好的代码可以大大简化维护过程。这包括合理使用注释、保持一致的编码风格和遵循最佳实践。</li> <li><strong>遵守标准</strong>：遵循HTML标准和最佳实践，确保代码的兼容性和有效性。</li> </ul> <h3>10.3.2 案例 1：重构旧的 HTML 页面</h3> <p>假设我们有一个使用旧HTML标签和实践编写的页面，我们将对其进行重构，使其符合HTML5标准。</p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>重构的页面<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>网站标题<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>nav</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 导航链接 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>nav</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>article</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>section</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h2</span><span class="token punctuation">></span></span>文章标题<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h2</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>文章内容...<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>section</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 更多文章内容 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>article</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>footer</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 页脚内容 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>footer</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <h3>10.3.3 案例 2：添加注释和改进代码结构</h3> <p>在这个例子中，我们将通过添加注释和改进代码结构来优化一个已有的HTML页面。</p> <pre><code class="prism language-html"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 主页头部信息 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>带注释的页面<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 网站头部 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>header</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>网站标题<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 导航栏 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>nav</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>ul</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>首页<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>联系我们<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>ul</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>nav</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>header</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 主要内容区域 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>main</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>article</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 文章标题 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h2</span><span class="token punctuation">></span></span>文章1<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h2</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 文章内容 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>这是文章的内容...<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>article</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 更多文章 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>main</span><span class="token punctuation">></span></span> <span class="token comment"><!-- 网站页脚 --></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>footer</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>版权信息<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>footer</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span> <span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span> </code></pre> <h3>10.3.4 案例 3：定期审查和更新网站内容</h3> <p>在这个案例中，我们模拟一个定期审查和更新网站内容的过程。</p> <ol> <li><strong>审查现有内容</strong>：检查所有页面，确定哪些内容过时、哪些内容需要更新。</li> <li><strong>更新过时的内容</strong>：对过时的信息进行更新，确保所有链接仍然有效，移除不再相关的内容。</li> <li><strong>添加新内容</strong>：根据最新信息或数据更新网站，例如添加新闻文章或博客帖子。</li> <li><strong>测试网站功能</strong>：确保所有的表单、导航和交互元素仍然按预期工作。</li> </ol> <p>通过定期进行这些维护步骤，你可以确保网站保持最新状态，提供最佳的用户体验。</p> </div> </div> </div> </div> </div> <!--PC和WAP自适应版--> <div id="SOHUCS" sid="1752532748880330752"></div> <script type="text/javascript" src="/views/front/js/chanyan.js"></script> <!-- 文章页-底部 动态广告位 --> <div class="youdao-fixed-ad" id="detail_ad_bottom"></div> </div> <div class="col-md-3"> <div class="row" id="ad"> <!-- 文章页-右侧1 动态广告位 --> <div id="right-1" class="col-lg-12 col-md-12 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