HTML如何制作可编辑表格？单元格怎么直接修改？

contenteditable

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<p>元素来实现。</p>
<p>要让HTML表格的单元格直接可编辑，最直观的方式是利用HTML5的</p>
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<pre class="brush:php;toolbar:false;">contenteditable</pre>
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<p>属性。你只需将这个属性添加到你希望可编辑的</p>
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<p>或</p>
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<p>但仅仅设置</p>
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<pre class="brush:php;toolbar:false;">contenteditable="true"</pre>
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<p>是不够的，因为用户修改后，这些数据并没有被保存下来。你需要借助JavaScript来捕获这些变化。一个常见的做法是监听单元格的</p>
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<pre class="brush:php;toolbar:false;">blur</pre>
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<p>事件（即失去焦点时），或者</p>
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<pre class="brush:php;toolbar:false;">keydown</pre>
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<p>事件（比如按下Enter键确认修改）。</p>
<p>立即学习“前端免费学习笔记（深入）”；</p>
<p>举个例子，假设你有一个表格：</p>
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<pre class='brush:html;toolbar:false;'>    <thead>                    <th>姓名</th>            <th>年龄</th>            </thead>                        张三            25                            李四            30            </pre>
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<p>你可以这样用JavaScript使其可编辑并处理保存逻辑：</p>
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<pre class='brush:javascript;toolbar:false;'>document.addEventListener('DOMContentLoaded', function() {    const table = document.getElementById('myEditableTable');    table.querySelectorAll('td').forEach(cell => {        cell.setAttribute('contenteditable', 'true'); // 让单元格可编辑        cell.originalValue = cell.textContent.trim(); // 存储原始值，用于后续比较        // 监听失去焦点事件        cell.addEventListener('blur', function() {            const newValue = this.textContent.trim();            // 检查数据是否真的改变了，避免不必要的请求            if (this.originalValue === newValue) {                return;            }            this.originalValue = newValue; // 更新原始值            const row = this.closest('tr');            const rowId = row.dataset.id; // 获取行的唯一ID            const columnKey = this.dataset.column; // 获取自定义数据属性，指示列名            console.log(`ID为 ${rowId} 的行，${columnKey} 列的值已修改为: ${newValue}`);            // 在这里可以添加AJAX请求，将newValue发送到服务器保存            // sendToServer({ id: rowId, column: columnKey, value: newValue });        });        // 监听回车键，使其在编辑完成后自动失去焦点        cell.addEventListener('keydown', function(event) {            if (event.key === 'Enter') {                event.preventDefault(); // 阻止默认的回车换行行为                this.blur(); // 强制失去焦点，触发blur事件            }        });    });});</pre>
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<p>这种方式给人的感觉非常直接，就像在Word里编辑文本一样。当然，你也可以选择在点击单元格时动态生成一个</p>
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<p>或</p>
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<pre class="brush:php;toolbar:false;"><textarea></pre>
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<p>元素来替换当前内容，编辑完成后再将输入框的值写回单元格，但这通常会涉及更多的DOM操作和状态管理，对复杂场景可能更适用，但对于简单的直接编辑，</p>
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<pre class="brush:php;toolbar:false;">contenteditable</pre>
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<p>无疑是更简洁的选择。</p>
<h3>编辑表格后，如何将修改后的数据保存到后端？</h3>
<p>这确实是核心问题。用户在前端修改了数据，如果不保存，刷新页面就没了。最常见且现代的做法是使用AJAX（Asynchronous JavaScript and XML）技术，将修改后的数据异步发送到服务器。</p>
<p>当你通过</p>
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<pre class="brush:php;toolbar:false;">blur</pre>
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<p>事件捕获到单元格内容的变化时，你就可以构建一个HTTP请求。通常，我们会使用</p>
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<pre class="brush:php;toolbar:false;">fetch</pre>
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<p> API或者</p>
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<pre class="brush:php;toolbar:false;">XMLHttpRequest</pre>
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<p>对象来完成这个任务。数据格式嘛，JSON（JavaScript Object Notation）是目前最流行、最轻量的数据交换格式。</p>
<p>比如说，在上面那个</p>
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<p>事件的回调里，你可以这么做：</p>
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<pre class='brush:javascript;toolbar:false;'>// ... 在 blur 事件监听器内部 ...cell.addEventListener('blur', function() {    const newValue = this.textContent.trim();    // 假设你之前保存了原始值在 cell.originalValue    if (this.originalValue === newValue) {        return; // 值没有变化，无需发送请求    }    this.originalValue = newValue; // 更新原始值    const row = this.closest('tr');    const rowId = row.dataset.id; // 假设每行有一个唯一ID    const columnKey = this.dataset.column;    const dataToSend = {        id: rowId,        column: columnKey,        value: newValue    };    fetch('/api/update-table-data', { // 替换为你的后端API地址        method: 'POST', // 或PUT，取决于你的API设计        headers: {            'Content-Type': 'application/json',            // 如果需要认证，这里可以添加 'Authorization': 'Bearer YOUR_TOKEN'        },        body: JSON.stringify(dataToSend)    })    .then(response => {        if (!response.ok) {            throw new Error(`HTTP error! status: ${response.status}`);        }        return response.json(); // 或 response.text()，取决于后端返回    })    .then(data => {        console.log('数据保存成功:', data);        // 可以在这里给用户一些反馈，比如短暂的“保存成功”提示    })    .catch(error => {        console.error('数据保存失败:', error);        // 提示用户保存失败，或者回滚到旧值    });});</pre>
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<p>这里有个小细节，为了避免用户快速连续修改多个单元格时发送大量请求，你可能需要考虑实现<strong>防抖（Debouncing）</strong>或<strong>节流（Throttling）</strong>。比如，在用户停止输入一段时间后才发送请求，或者在某个时间间隔内只发送一次请求。这能有效减轻服务器压力，提升用户体验。</p>
<h3>如何提升可编辑表格的用户体验和交互性？</h3>
<p>仅仅让表格可编辑是不够的，好的用户体验才是王道。想象一下，用户改了半天，结果不知道有没有保存成功，或者不知道哪些地方可以改，这体验可就太糟糕了。</p>
<p>一个很重要的点是<strong>视觉反馈</strong>。当一个单元格被编辑时，可以给它加个边框或者背景色，让用户知道当前正在编辑哪个单元格。保存成功后，可以短暂地显示一个“保存成功”的提示，或者改变单元格的样式，表示数据已同步。如果保存失败，则需要给出明确的错误提示。</p>
<p><strong>键盘导航</strong>也是不可或缺的。用户习惯了在表格里用Tab键切换单元格，用Enter键确认输入并跳到下一行或下一个单元格。前面提到的</p>
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<pre class="brush:php;toolbar:false;">keydown</pre>
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<p>事件监听Enter键来触发</p>
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<p>就是一个很好的例子。你甚至可以扩展它，让Tab键在单元格之间平滑跳转，甚至能从一个单元格跳到下一个行的一个单元格。这需要一些额外的JavaScript逻辑来管理焦点。</p>
<p><strong>输入验证</strong>是保障数据质量的关键。在前端就对用户的输入进行初步检查，比如数字字段只允许输入数字，日期字段只允许输入日期格式。这可以在用户输入时实时进行，或者在</p>
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<p>事件触发时进行。如果输入不合法，可以立即给出错误提示，并阻止保存。</p>
<p>另外，考虑一些更高级的特性：</p>
<p><strong>撤销/重做（Undo/Redo）</strong>：虽然实现起来比较复杂，需要维护一个操作历史栈，但对于频繁修改的表格，这个功能会大大提升用户满意度。<strong>上下文菜单</strong>：右键点击单元格时，弹出一个包含“复制”、“粘贴”、“删除行”等选项的菜单，能让操作更加便捷。<strong>加载状态</strong>：当数据正在保存到后端时，可以显示一个小的加载图标，避免用户重复操作或误以为系统卡死。</p>
<p>这些细节的打磨，能让一个简单的可编辑表格变得非常专业和易用。</p>
<h3>在实现可编辑表格时，需要注意哪些安全和性能问题？</h3>
<p>当我们谈论用户可以直接修改内容的界面时，安全和性能是绕不开的两个大山。</p>
<p><strong>安全性方面，最头疼的就是跨站脚本攻击（XSS）</strong>。如果用户在可编辑单元格里输入了恶意脚本（比如</p>
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<pre class="brush:php;toolbar:false;">alert('你被攻击了')</pre>
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<p>），并且你没有对这些内容进行净化就直接显示或保存，那么其他用户访问时就可能触发这些脚本，导致会话劫持、数据窃取等严重后果。</p>
<p>所以，<strong>净化用户输入是铁律！</strong> 这需要在两个层面进行：</p>
<p><strong>前端净化</strong>：虽然前端净化不能作为唯一的安全措施，但它可以提供即时反馈，防止用户输入一些明显不合规的内容。你可以使用一些库（如DOMPurify）来清理HTML标签，或者只允许纯文本输入。<strong>后端净化（核心！）</strong>：任何来自用户的数据，在存储到数据库或返回给其他用户之前，都必须在服务器端进行严格的净化和验证。这是防止XSS攻击的最后一道防线，也是最重要的一道。永远不要相信来自前端的任何数据。</p>
<p>**性能方面，尤其是当表格数据量很大时，挑战就来了</p>
<p>以上就是HTML如何制作可编辑表格？单元格怎么直接修改？的详细内容，更多请关注创想鸟其它相关文章！</p>
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                                    <span class="item-meta-li date">2025年12月22日</span>
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                                    <span class="item-meta-li date">2025年12月22日</span>
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                                    <span class="item-meta-li date">2025年12月22日</span>
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                                    <span class="item-meta-li date">2025年12月22日</span>
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                                    <span class="item-meta-li date">2025年12月22日</span>
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                        <span class="item-meta-li date">2025年12月22日</span>
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            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="HTML如何制作数独游戏？数字填充怎么校验？" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175455102480605.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
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                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1570730.html" target="_blank" rel="bookmark">
                                 HTML如何制作数独游戏？数字填充怎么校验？            </a>
        </h3>
        <div class="item-excerpt">
            <p>数独游戏的html结构使用table和input元素构建9×9网格，通过data属性或id标识单元格位置；2. css设置单元格边框、背景色，并用粗边框区分3×3宫格，提升视觉辨识；3. javascript维护二维数组同步ui状态，监听输入事件，实时校验行、列、宫格唯一性；4.…</p>
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                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' />                    <span>程序猿</span>
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                                    <span class="item-meta-li date">2025年12月22日</span>
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                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1570730.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1570725.html" title="HTML如何实现手写签名？canvas怎么捕捉笔画？" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="HTML如何实现手写签名？canvas怎么捕捉笔画？" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175455204671708.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
                <a class="item-category" href="https://www.chuangxiangniao.com/news-2" target="_blank">好文分享</a>
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        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1570725.html" target="_blank" rel="bookmark">
                                 HTML如何实现手写签名？canvas怎么捕捉笔画？            </a>
        </h3>
        <div class="item-excerpt">
            <p>html实现手写签名的核心是利用canvas元素，通过javascript监听鼠标或触摸事件来捕捉笔画轨迹并绘制。1. 首先在html中创建一个canvas元素并设置id和尺寸；2. 使用css设置外观样式，如边框和固定大小；3. 在javascript中获取canvas及其2d绘图上下文，定义is…</p>
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                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' />                    <span>程序猿</span>
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                                    <span class="item-meta-li date">2025年12月22日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1570725.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1570723.html" title="HTML如何实现条形码？怎么显示产品条码？" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="HTML如何实现条形码？怎么显示产品条码？" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175455216663983.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
                <a class="item-category" href="https://www.chuangxiangniao.com/news-2" target="_blank">好文分享</a>
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        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1570723.html" target="_blank" rel="bookmark">
                                 HTML如何实现条形码？怎么显示产品条码？            </a>
        </h3>
        <div class="item-excerpt">
            <p>在html中显示条形码有两种主要技术选择：1. 服务器端生成图片，优点是兼容性好、减轻客户端负担、便于缓存和cdn分发、安全性高，缺点是实时性差、服务器压力大、位图缩放可能模糊；2. 客户端javascript库动态生成，优点是实时动态更新、减少服务器负载、支持离线生成、svg格式清晰可缩放，缺点是…</p>
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        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' />                    <span>程序猿</span>
                </a>
            </div>
                                    <span class="item-meta-li date">2025年12月22日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1570723.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1570716.html" title="HTML如何制作加载动画？旋转图标怎么实现？" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="HTML如何制作加载动画？旋转图标怎么实现？" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175455252297623.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
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        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1570716.html" target="_blank" rel="bookmark">
                                 HTML如何制作加载动画？旋转图标怎么实现？            </a>
        </h3>
        <div class="item-excerpt">
            <p>制作加载动画和旋转图标的核心是使用css的transform、@keyframes和animation属性，通过html构建结构，css实现动态效果，优先采用gpu加速的transform以提升性能；2. 对于复杂动画或交互需求，可选用javascript动画库如gsap、lottiefiles播放…</p>
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        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' />                    <span>程序猿</span>
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            </div>
                                    <span class="item-meta-li date">2025年12月22日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1570716.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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</li>
<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1570712.html" title="HTML如何制作太阳系模型？行星轨道怎么动画？" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="HTML如何制作太阳系模型？行星轨道怎么动画？" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175455342450251.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
                <a class="item-category" href="https://www.chuangxiangniao.com/news-2" target="_blank">好文分享</a>
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        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1570712.html" target="_blank" rel="bookmark">
                                 HTML如何制作太阳系模型？行星轨道怎么动画？            </a>
        </h3>
        <div class="item-excerpt">
            <p>构建html太阳系模型需先创建包含太阳和各行星轨道的dom结构，每个行星嵌套在独立的轨道容器内；2. 使用css设置外层容器的perspective和transform-style: preserve-3d以建立3d空间，太阳通过绝对定位居中，轨道容器以transform-origin: 0 0确保…</p>
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        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' />                    <span>程序猿</span>
                </a>
            </div>
                                    <span class="item-meta-li date">2025年12月22日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1570712.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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</li>
<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1570705.html" title="HTML如何嵌入地图？Google Maps怎么集成？" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="HTML如何嵌入地图？Google Maps怎么集成？" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175455414525460.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
                <a class="item-category" href="https://www.chuangxiangniao.com/news-2" target="_blank">好文分享</a>
            </div>
        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1570705.html" target="_blank" rel="bookmark">
                                 HTML如何嵌入地图？Google Maps怎么集成？            </a>
        </h3>
        <div class="item-excerpt">
            <p>最直接的方式是使用标签嵌入预生成的地图链接，适用于展示固定位置；2. 若需动态交互或自定义功能，则应使用google maps javascript api；3. 选择方法取决于需求复杂度：静态展示用，动态功能用api；4. 常见问题包括api密钥配置错误、地图容器无明确尺寸及脚本加载时机不当；5.…</p>
        </div>
        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' />                    <span>程序猿</span>
                </a>
            </div>
                                    <span class="item-meta-li date">2025年12月22日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1570705.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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    </div>
</li>
<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1570697.html" title="HTML如何修改元素样式？style属性怎么用" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="HTML如何修改元素样式？style属性怎么用" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175453872751630.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
                <a class="item-category" href="https://www.chuangxiangniao.com/news-2" target="_blank">好文分享</a>
            </div>
        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1570697.html" target="_blank" rel="bookmark">
                                 HTML如何修改元素样式？style属性怎么用            </a>
        </h3>
        <div class="item-excerpt">
            <p>最推荐的修改html元素样式的方法是使用外部样式表，1. 使用外部样式表通过link标签引入独立css文件，实现结构与样式的完全分离，便于维护和复用；2. 使用内部样式表在head中通过style标签定义当前页面的样式，适合单页专用样式；3. 利用css选择器如类选择器、id选择器和标签选择器来精确…</p>
        </div>
        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' />                    <span>程序猿</span>
                </a>
            </div>
                                    <span class="item-meta-li date">2025年12月22日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1570697.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
        </div>
    </div>
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<li class="item item3">
    <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1570692.html" target="_blank" rel="bookmark">
                                 怎样在HTML中插入JavaScript代码？ JS代码嵌入方法详解            </a>
        </h3>
        <a class="item-images" href="https://www.chuangxiangniao.com/p/1570692.html" title="怎样在HTML中插入JavaScript代码？ JS代码嵌入方法详解" target="_blank">
            <span><i class="item-images-el j-lazy" style="background-image: url('https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png');" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175453908367241.png"></i></span><span><i class="item-images-el j-lazy" style="background-image: url('https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png');" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175453908338122.png"></i></span><span><i class="item-images-el j-lazy" style="background-image: url('https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png');" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175453908385400.png"></i></span><span><i class="item-images-el j-lazy" style="background-image: url('https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png');" data-original="https://cdn.chuangxiangniao.com/www/2025/12/175453908386483.png"></i></span>        </a>
        <div class="item-excerpt">
            <p>在html中插入javascript的核心方法是使用标签，主要分为内部脚本、外部脚本和行内脚本三种方式；2. 内部脚本将js代码直接写在html文件中，适用于代码量小且仅限当前页面使用的场景；3. 外部脚本通过src属性引用独立的.js文件，有利于代码分离、缓存复用、维护和构建工具优化，是推荐做法；…</p>
        </div>
        <div class="item-meta">
                            <div class="item-meta-li author">
                                        <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                        <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' />                        <span>程序猿</span>
                    </a>
                </div>
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