当前位置：首页 > 文章列表 > 文章 > 前端 > HTML如何开启图片懒加载提升性能

HTML如何开启图片懒加载提升性能

2026-04-08 18:33:22 0浏览收藏

HTML图片懒加载看似只需添加`loading="lazy"`即可，实则暗藏诸多坑点：浏览器兼容性参差（尤其Safari旧版和微信X5内核完全不支持）、首屏关键图滥用懒加载易致白屏闪动、`srcset`/`sizes`语法错误会导致静默失效、框架中属性透传需特别处理、局部滚动容器更让原生懒加载彻底失灵——真正高性能的图片加载，从来不是加个属性就完事，而是需结合兼容性兜底、语义化标记、框架适配与自定义监听的系统性实践。

html怎么转loading lazy属性_HTML如何启用图片懒加载提升性能

img 标签加 `loading="lazy"` 就完事了？别急，先看浏览器支持

不是所有浏览器都认 loading="lazy" —— Chrome 76+、Edge 79+、Firefox 75+ 支持，Safari 直到 15.4 才开始部分支持（仅对，不支持 </code>）。老版本 Safari 或微信内置浏览器（X5 内核）直接忽略该属性，不报错也不生效。</p> <p>所以如果你的用户里还有 iOS 14 及更早设备，或者企业微信/钉钉内嵌页，<code>loading="lazy"</code> 就是摆设。得靠 JS 回退方案兜底，比如用 <code>IntersectionObserver</code> 手动监听进入视口再设置 <code>src</code>。</p> <h3>为什么 <code>loading="eager"</code> 有时反而更稳？</h3> <p>懒加载不是万能银弹。首屏关键图片（比如 banner、头像、商品主图）如果加了 <code>loading="lazy"</code>，在某些网络慢 + 渲染快的组合下，可能被浏览器判定为“非临界”，延迟加载导致白屏或闪动。</p> <p>这些场景建议显式写 <code>loading="eager"</code>：</p> <ul><li>首屏可见区域内的 <code><img></code>（尤其是 <code>width</code>/<code>height</code> 已固定、无 CSS 覆盖的）</li> <li>使用 <code>background-image</code> 的伪元素图片（<code>loading</code> 属性对它完全无效）</li> <li>通过 <code>object-fit: cover</code> 裁剪的关键图，懒加载后尺寸重排可能引发 layout shift</li> </ul><h3>和 <code>srcset</code>、<code>sizes</code> 搭配时，顺序和语法不能错</h3> <p><code>loading="lazy"</code> 必须和其他属性共存，但顺序无关紧要；真正容易出错的是 <code>srcset</code> 和 <code>sizes</code> 的值格式——一旦写错，懒加载会静默失效（浏览器回退到加载 <code>src</code>，但你可能根本没设 <code>src</code>）。</p> <p>常见错误：</p> <ul><li>漏写 <code>src</code>：有些同学以为 <code>srcset</code> 足够，结果在不支持 <code>srcset</code> 的旧环境或懒加载降级逻辑里直接 404</li> <li><code>sizes</code> 值里用了带单位的宽度（如 <code>"50vw"</code> 正确，<code>"50vw px"</code> 错误）</li> <li><code>srcset</code> 中图片路径含空格但没编码（<code>cat photo.jpg</code> → 应为 <code>cat%20photo.jpg</code>）</li> </ul><p>稳妥写法示例：<br></p><pre class="brush:php;toolbar:false"><img src="cat-small.jpg" srcset="cat-small.jpg 480w, cat-large.jpg 1024w" sizes="(max-width: 480px) 100vw, 50vw" loading="lazy" alt="cat"></pre> <h3>Vue/React 里动态生成 img，<code>loading</code> 属性可能被框架过滤</h3> <p>Vue 2 默认不识别 <code>loading</code> 这类非标准 HTML 属性，除非你用 <code>v-bind:</code> 显式绑定；React 则从 16+ 开始支持，但小写驼峰写法必须是 <code>loading</code>（不是 <code>loadingLazy</code> 或 <code>Loading</code>）。</p> <p>Vue 2 示例（需强制透传）：<br></p><pre class="brush:php;toolbar:false"><img v-bind:{"loading": "lazy"} :src="url" /></pre> <p>React 示例：<br></p><pre class="brush:php;toolbar:false"><img src={url} loading="lazy" alt="" /></pre> <p>另外注意：服务端渲染（SSR）时，如果 Node 环境的 React 版本低于 16.11，<code>loading</code> 属性不会被输出到 HTML 字符串里，首屏仍会全量加载。</p> <p>最麻烦的其实是「混合滚动容器」——比如一个 <code>div</code> 设置了 <code>overflow-y: auto</code>，里面塞了几十张图。这时 <code>loading="lazy"</code> 默认只对 viewport 生效，对这个局部滚动容器无效。真要懒，只能自己用 <code>IntersectionObserver</code> 监听目标容器的 <code>scrollTop</code> 和元素位置算偏移，没有捷径。</p><p>理论要掌握，实操不能落！以上关于《HTML如何开启图片懒加载提升性能》的详细介绍，大家都掌握了吧！如果想要继续提升自己的能力，那么就来关注golang学习网公众号吧！</p> </div> <div class="labsList"> </div> <div class="cateBox"> <div class="cateItem"> <a href="/article/561156.html" title="Excel三级下拉菜单设置教程" class="img_box"> <img loading="lazy" src="/uploads/20260408/177564439469d62eea0f436.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="Excel三级下拉菜单设置教程">Excel三级下拉菜单设置教程 </a> <dl> <dt class="lineOverflow"><a href="/article/561156.html" title="Excel三级下拉菜单设置教程" class="aBlack">上一篇<i></i></a></dt> <dd class="lineTwoOverflow">Excel三级下拉菜单设置教程</dd> </dl> </div> <div class="cateItem"> <a href="/article/561158.html" title="JavaScript虚拟机工作原理详解" class="img_box"> <img loading="lazy" src="/uploads/20260408/177564445369d62f259302a.png" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="JavaScript虚拟机工作原理详解"> </a> <dl> <dt class="lineOverflow"><a href="/article/561158.html" class="aBlack" title="JavaScript虚拟机工作原理详解">下一篇<i></i></a></dt> <dd class="lineTwoOverflow">JavaScript虚拟机工作原理详解</dd> </dl> </div> </div> </div> </div> <div class="leftContBox pt0"> <div class="pdl20"> <div class="contTit"> <a href="/articlelist.html" class="more" title="查看更多">查看更多<i class="iconfont"></i></a> <div class="tit">最新文章</div> </div> </div> <ul class="newArticleList"> <li> <div class="contBox"> <a href="/article/585525.html" class="img_box" title="html文件怎么做成链接 html文件生成链接分享方法【技巧】"> <img loading="lazy" src="/uploads/20260502/177771425869f5c452191b2.jpg" onerror="this.src='/assets/images/moren/morentu.png'" alt="html文件怎么做成链接 html文件生成链接分享方法【技巧】"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  12分钟前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585525.html" class="aBlack" target="_blank" title="html文件怎么做成链接 html文件生成链接分享方法【技巧】">html文件怎么做成链接 html文件生成链接分享方法【技巧】</a> </dt> <dd class="cont2"> <span><i class="view"></i>431浏览</span> <span class="collectBtn user_collection" data-id="585525" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585517.html" class="img_box" title="如何利用 URL.createObjectURL() 实现前端纯 JS 的海量报表数据导出为 Excel 文件的功能"> <img loading="lazy" src="/uploads/20260502/177771382369f5c29ff0a96.png" onerror="this.src='/assets/images/moren/morentu.png'" alt="如何利用 URL.createObjectURL() 实现前端纯 JS 的海量报表数据导出为 Excel 文件的功能"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  20分钟前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585517.html" class="aBlack" target="_blank" title="如何利用 URL.createObjectURL() 实现前端纯 JS 的海量报表数据导出为 Excel 文件的功能">如何利用 URL.createObjectURL() 实现前端纯 JS 的海量报表数据导出为 Excel 文件的功能</a> </dt> <dd class="cont2"> <span><i class="view"></i>288浏览</span> <span class="collectBtn user_collection" data-id="585517" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585514.html" class="img_box" title="HTML Ajax不支持异步请求怎么办_HTML Ajax和异步请求原理【入门】"> <img loading="lazy" src="/uploads/20260502/177771370869f5c22cbfd2b.png" onerror="this.src='/assets/images/moren/morentu.png'" alt="HTML Ajax不支持异步请求怎么办_HTML Ajax和异步请求原理【入门】"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  22分钟前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585514.html" class="aBlack" target="_blank" title="HTML Ajax不支持异步请求怎么办_HTML Ajax和异步请求原理【入门】">HTML Ajax不支持异步请求怎么办_HTML Ajax和异步请求原理【入门】</a> </dt> <dd class="cont2"> <span><i class="view"></i>389浏览</span> <span class="collectBtn user_collection" data-id="585514" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585511.html" class="img_box" title="HTML全局属性Id的唯一性：违反规范会导致哪些潜在风险"> <img loading="lazy" src="/uploads/20260502/177771353769f5c1812f3ea.png" onerror="this.src='/assets/images/moren/morentu.png'" alt="HTML全局属性Id的唯一性：违反规范会导致哪些潜在风险"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  24分钟前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585511.html" class="aBlack" target="_blank" title="HTML全局属性Id的唯一性：违反规范会导致哪些潜在风险">HTML全局属性Id的唯一性：违反规范会导致哪些潜在风险</a> </dt> <dd class="cont2"> <span><i class="view"></i>211浏览</span> <span class="collectBtn user_collection" data-id="585511" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585501.html" class="img_box" title="css 元素后面添加分隔线怎么办_利用 after 伪元素生成装饰"> <img loading="lazy" src="/uploads/20260502/177771309569f5bfc721de8.jpg" onerror="this.src='/assets/images/moren/morentu.png'" alt="css 元素后面添加分隔线怎么办_利用 after 伪元素生成装饰"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  32分钟前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585501.html" class="aBlack" target="_blank" title="css 元素后面添加分隔线怎么办_利用 after 伪元素生成装饰">css 元素后面添加分隔线怎么办_利用 after 伪元素生成装饰</a> </dt> <dd class="cont2"> <span><i class="view"></i>410浏览</span> <span class="collectBtn user_collection" data-id="585501" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585490.html" class="img_box" title="如何用 beforeunload 事件在用户关闭页面前弹出警告提示"> <img loading="lazy" src="/uploads/20260502/177771249369f5bd6da5f6a.png" onerror="this.src='/assets/images/moren/morentu.png'" alt="如何用 beforeunload 事件在用户关闭页面前弹出警告提示"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  42分钟前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585490.html" class="aBlack" target="_blank" title="如何用 beforeunload 事件在用户关闭页面前弹出警告提示">如何用 beforeunload 事件在用户关闭页面前弹出警告提示</a> </dt> <dd class="cont2"> <span><i class="view"></i>496浏览</span> <span class="collectBtn user_collection" data-id="585490" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585488.html" class="img_box" title="dir属性控制文本方向_HTML多语言适配极简法则"> <img loading="lazy" src="/uploads/20260502/177771244469f5bd3c847ad.png" onerror="this.src='/assets/images/moren/morentu.png'" alt="dir属性控制文本方向_HTML多语言适配极简法则"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  43分钟前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585488.html" class="aBlack" target="_blank" title="dir属性控制文本方向_HTML多语言适配极简法则">dir属性控制文本方向_HTML多语言适配极简法则</a> </dt> <dd class="cont2"> <span><i class="view"></i>342浏览</span> <span class="collectBtn user_collection" data-id="585488" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585478.html" class="img_box" title="CSS项目实战之响应式图片网格_不同分辨率下的列数调整"> <img loading="lazy" src="/uploads/20260502/177771202369f5bb97e2e7d.jpg" onerror="this.src='/assets/images/moren/morentu.png'" alt="CSS项目实战之响应式图片网格_不同分辨率下的列数调整"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  50分钟前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585478.html" class="aBlack" target="_blank" title="CSS项目实战之响应式图片网格_不同分辨率下的列数调整">CSS项目实战之响应式图片网格_不同分辨率下的列数调整</a> </dt> <dd class="cont2"> <span><i class="view"></i>440浏览</span> <span class="collectBtn user_collection" data-id="585478" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585461.html" class="img_box" title="HTML函数开发需要外接显示器吗_多屏对HTML函数效率提升【汇总】"> <img loading="lazy" src="/uploads/20260502/177771129969f5b8c35b266.png" onerror="this.src='/assets/images/moren/morentu.png'" alt="HTML函数开发需要外接显示器吗_多屏对HTML函数效率提升【汇总】"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  1小时前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585461.html" class="aBlack" target="_blank" title="HTML函数开发需要外接显示器吗_多屏对HTML函数效率提升【汇总】">HTML函数开发需要外接显示器吗_多屏对HTML函数效率提升【汇总】</a> </dt> <dd class="cont2"> <span><i class="view"></i>228浏览</span> <span class="collectBtn user_collection" data-id="585461" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585459.html" class="img_box" title="如何利用 CSS Highlights 实现高性能的全文搜索高亮以替代繁重的 DOM 操作"> <img loading="lazy" src="/uploads/20260502/177771119469f5b85a65890.png" onerror="this.src='/assets/images/moren/morentu.png'" alt="如何利用 CSS Highlights 实现高性能的全文搜索高亮以替代繁重的 DOM 操作"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  1小时前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585459.html" class="aBlack" target="_blank" title="如何利用 CSS Highlights 实现高性能的全文搜索高亮以替代繁重的 DOM 操作">如何利用 CSS Highlights 实现高性能的全文搜索高亮以替代繁重的 DOM 操作</a> </dt> <dd class="cont2"> <span><i class="view"></i>165浏览</span> <span class="collectBtn user_collection" data-id="585459" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585453.html" class="img_box" title="如何通过HTML的WebGL的createBuffer创建顶点缓冲区存储几何数据"> <img loading="lazy" src="/uploads/20260502/177771101269f5b7a4e0edf.png" onerror="this.src='/assets/images/moren/morentu.png'" alt="如何通过HTML的WebGL的createBuffer创建顶点缓冲区存储几何数据"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  1小时前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585453.html" class="aBlack" target="_blank" title="如何通过HTML的WebGL的createBuffer创建顶点缓冲区存储几何数据">如何通过HTML的WebGL的createBuffer创建顶点缓冲区存储几何数据</a> </dt> <dd class="cont2"> <span><i class="view"></i>263浏览</span> <span class="collectBtn user_collection" data-id="585453" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> <li> <div class="contBox"> <a href="/article/585449.html" class="img_box" title="css animation与filter组合使用实现图片特效"> <img loading="lazy" src="/uploads/20260502/177771081669f5b6e03632a.jpg" onerror="this.src='/assets/images/moren/morentu.png'" alt="css animation与filter组合使用实现图片特效"> </a> <dl> <dd class="cont1"> <span> <a href="/articlelist/19_new_0_1.html" class="aLightGray" title="文章">文章</a> · <a href="/articlelist/88_new_0_1.html" class="aLightGray" title="前端">前端</a>   |  1小时前  |   </span> </dd> <dt class="lineOverflow"> <a href="/article/585449.html" class="aBlack" target="_blank" title="css animation与filter组合使用实现图片特效">css animation与filter组合使用实现图片特效</a> </dt> <dd class="cont2"> <span><i class="view"></i>235浏览</span> <span class="collectBtn user_collection" data-id="585449" data-type="article" title="收藏"><i class="collect"></i>收藏</span> </dd> </dl> </div> </li> </ul> </div> </div> <div class="mainRight"> <div class="rightContBox" style="margin-top: 0px;background: linear-gradient(135deg,#fdf6ec,#fff7e6);"> <div class="rightTit" style="margin-bottom: 10px;"> <div class="tit lineOverflow" style="font-weight: 700;font-size: 16px;color: #ff7e29;">资料下载</div> </div> <ul class="lessonRecomRList"> <li> <div style="display: flex;align-items: stretch;"> <a href="https://pan.quark.cn/s/ba8ef670cabd" rel="nofollow" class="img_box" target="_blank" rel="nofollow" title="编程学习资料下载" style="min-height: 80px;border-radius: 5px;overflow: hidden;background: #ffffff;box-shadow: 0 4px 10px rgba(0,0,0,0.06);margin-right: 14px;display: flex;align-items: center;justify-content: center;"> <img loading="lazy" src="/assets/images/xuexiziliao.jpeg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="编程学习资料下载" style="width: 100%;height: 100%;object-fit: cover;"> </a> <dl style="flex: 1;margin: 0;display: flex;flex-direction: column;justify-content: center;"> <dt class="lineTwoOverflow" style="height: auto;"> <a href="https://pan.quark.cn/s/ba8ef670cabd" rel="nofollow" target="_blank" class="aBlack" title="编程学习资料下载" style="font-size: 15px;font-weight: 600;color: #262626;">编程学习资料下载</a> </dt> <dd class="cont1 lineTwoOverflow" style="font-size: 13px;line-height: 1.6;color: #666666;margin-bottom: 8px; height: auto;"> 精选编程（Golang、Python、Java、C++、JavaScript等）教程、电子书与示例源码，一键打包本地下载学习。 </dd> <dd class="cont2" style="margin: 0;"> <a href="https://pan.quark.cn/s/ba8ef670cabd" rel="nofollow" target="_blank" style="display: inline-block;padding: 6px 16px;border-radius: 999px;background: linear-gradient(135deg,#ff7e29,#ff9f43);color: #ffffff;font-size: 13px;"> 立即下载 </a> </dd> </dl> </div> </li> </ul> </div>  <div class="rightContBox"> <div class="rightTit"> <a href="/courselist.html" class="more" title="查看更多">查看更多<i class="iconfont"></i></a> <div class="tit lineOverflow">课程推荐</div> </div> <ul class="lessonRecomRList"> <li> <a href="/course/9.html" class="img_box" target="_blank" title="前端进阶之JavaScript设计模式"> <img loading="lazy" src="/uploads/20221222/52fd0f23a454c71029c2c72d206ed815.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="前端进阶之JavaScript设计模式"> </a> <dl> <dt class="lineTwoOverflow"><a href="/course/9.html" target="_blank" class="aBlack" title="前端进阶之JavaScript设计模式">前端进阶之JavaScript设计模式</a></dt> <dd class="cont1 lineTwoOverflow"> 设计模式是开发人员在软件开发过程中面临一般问题时的解决方案，代表了最佳的实践。本课程的主打内容包括JS常见设计模式以及具体应用场景，打造一站式知识长龙服务，适合有JS基础的同学学习。 </dd> <dd class="cont2">543次学习</dd> </dl> </li> <li> <a href="/course/2.html" class="img_box" target="_blank" title="GO语言核心编程课程"> <img loading="lazy" src="/uploads/20221221/634ad7404159bfefc6a54a564d437b5f.png" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="GO语言核心编程课程"> </a> <dl> <dt class="lineTwoOverflow"><a href="/course/2.html" target="_blank" class="aBlack" title="GO语言核心编程课程">GO语言核心编程课程</a></dt> <dd class="cont1 lineTwoOverflow"> 本课程采用真实案例，全面具体可落地，从理论到实践，一步一步将GO核心编程技术、编程思想、底层实现融会贯通，使学习者贴近时代脉搏，做IT互联网时代的弄潮儿。 </dd> <dd class="cont2">516次学习</dd> </dl> </li> <li> <a href="/course/74.html" class="img_box" target="_blank" title="简单聊聊mysql8与网络通信"> <img loading="lazy" src="/uploads/20240103/bad35fe14edbd214bee16f88343ac57c.png" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="简单聊聊mysql8与网络通信"> </a> <dl> <dt class="lineTwoOverflow"><a href="/course/74.html" target="_blank" class="aBlack" title="简单聊聊mysql8与网络通信">简单聊聊mysql8与网络通信</a></dt> <dd class="cont1 lineTwoOverflow"> 如有问题加微信：Le-studyg；在课程中，我们将首先介绍MySQL8的新特性，包括性能优化、安全增强、新数据类型等，帮助学生快速熟悉MySQL8的最新功能。接着，我们将深入解析MySQL的网络通信机制，包括协议、连接管理、数据传输等，让 </dd> <dd class="cont2">500次学习</dd> </dl> </li> <li> <a href="/course/57.html" class="img_box" target="_blank" title="JavaScript正则表达式基础与实战"> <img loading="lazy" src="/uploads/20221226/bbe4083bb3cb0dd135fb02c31c3785fb.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="JavaScript正则表达式基础与实战"> </a> <dl> <dt class="lineTwoOverflow"><a href="/course/57.html" target="_blank" class="aBlack" title="JavaScript正则表达式基础与实战">JavaScript正则表达式基础与实战</a></dt> <dd class="cont1 lineTwoOverflow"> 在任何一门编程语言中,正则表达式,都是一项重要的知识,它提供了高效的字符串匹配与捕获机制,可以极大的简化程序设计。 </dd> <dd class="cont2">487次学习</dd> </dl> </li> <li> <a href="/course/28.html" class="img_box" target="_blank" title="从零制作响应式网站—Grid布局"> <img loading="lazy" src="/uploads/20221223/ac110f88206daeab6c0cf38ebf5fe9ed.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="从零制作响应式网站—Grid布局"> </a> <dl> <dt class="lineTwoOverflow"><a href="/course/28.html" target="_blank" class="aBlack" title="从零制作响应式网站—Grid布局">从零制作响应式网站—Grid布局</a></dt> <dd class="cont1 lineTwoOverflow"> 本系列教程将展示从零制作一个假想的网络科技公司官网，分为导航，轮播，关于我们，成功案例，服务流程，团队介绍，数据部分，公司动态，底部信息等内容区块。网站整体采用CSSGrid布局，支持响应式，有流畅过渡和展现动画。 </dd> <dd class="cont2">485次学习</dd> </dl> </li> </ul> </div> <div class="rightContBox"> <div class="rightTit"> <a href="/ai.html" class="more" title="查看更多">查看更多<i class="iconfont"></i></a> <div class="tit lineOverflow">AI推荐</div> </div> <ul class="lessonRecomRList"> <li> <a href="/ai/13100.html" target="_blank" title="ChatExcel酷表：告别Excel难题，北大团队AI助手助您轻松处理数据" class="img_box"> <img loading="lazy" src="/uploads/20251027/176155320368ff2b3345c06.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="ChatExcel酷表：告别Excel难题，北大团队AI助手助您轻松处理数据" style="object-fit:cover;width:100%;height:100%;"> </a> <dl> <dt class="lineTwoOverflow"><a href="/ai/13100.html" class="aBlack" target="_blank" title="ChatExcel酷表">ChatExcel酷表</a></dt> <dd class="cont1 lineTwoOverflow"> ChatExcel酷表是由北京大学团队打造的Excel聊天机器人，用自然语言操控表格，简化数据处理，告别繁琐操作，提升工作效率！适用于学生、上班族及政府人员。 </dd> <dd class="cont2">4441次使用</dd> </dl> </li> <li> <a href="/ai/13099.html" target="_blank" title="Any绘本：开源免费AI绘本创作工具深度解析" class="img_box"> <img loading="lazy" src="/uploads/20251023/176120760368f9e5333da5f.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="Any绘本：开源免费AI绘本创作工具深度解析" style="object-fit:cover;width:100%;height:100%;"> </a> <dl> <dt class="lineTwoOverflow"><a href="/ai/13099.html" class="aBlack" target="_blank" title="Any绘本">Any绘本</a></dt> <dd class="cont1 lineTwoOverflow"> 探索Any绘本（anypicturebook.com/zh），一款开源免费的AI绘本创作工具，基于Google Gemini与Flux AI模型，让您轻松创作个性化绘本。适用于家庭、教育、创作等多种场景，零门槛，高自由度，技术透明，本地可控。 </dd> <dd class="cont2">4798次使用</dd> </dl> </li> <li> <a href="/ai/13098.html" target="_blank" title="可赞AI：AI驱动办公可视化智能工具，一键高效生成文档图表脑图" class="img_box"> <img loading="lazy" src="/uploads/20251021/176103600268f746e238bb8.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="可赞AI：AI驱动办公可视化智能工具，一键高效生成文档图表脑图" style="object-fit:cover;width:100%;height:100%;"> </a> <dl> <dt class="lineTwoOverflow"><a href="/ai/13098.html" class="aBlack" target="_blank" title="可赞AI">可赞AI</a></dt> <dd class="cont1 lineTwoOverflow"> 可赞AI，AI驱动的办公可视化智能工具，助您轻松实现文本与可视化元素高效转化。无论是智能文档生成、多格式文本解析，还是一键生成专业图表、脑图、知识卡片，可赞AI都能让信息处理更清晰高效。覆盖数据汇报、会议纪要、内容营销等全场景，大幅提升办公效率，降低专业门槛，是您提升工作效率的得力助手。 </dd> <dd class="cont2">4677次使用</dd> </dl> </li> <li> <a href="/ai/13097.html" target="_blank" title="星月写作：AI网文创作神器，助力爆款小说速成" class="img_box"> <img loading="lazy" src="/uploads/20251014/176043000368ee07b3159d6.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="星月写作：AI网文创作神器，助力爆款小说速成" style="object-fit:cover;width:100%;height:100%;"> </a> <dl> <dt class="lineTwoOverflow"><a href="/ai/13097.html" class="aBlack" target="_blank" title="星月写作">星月写作</a></dt> <dd class="cont1 lineTwoOverflow"> 星月写作是国内首款聚焦中文网络小说创作的AI辅助工具，解决网文作者从构思到变现的全流程痛点。AI扫榜、专属模板、全链路适配，助力新人快速上手，资深作者效率倍增。 </dd> <dd class="cont2">6462次使用</dd> </dl> </li> <li> <a href="/ai/13096.html" target="_blank" title="MagicLight.ai：叙事驱动AI动画视频创作平台 | 高效生成专业级故事动画" class="img_box"> <img loading="lazy" src="/uploads/20251014/176040000268ed9282edf80.jpg" onerror="this.onerror='',this.src='/assets/images/moren/morentu.png'" alt="MagicLight.ai：叙事驱动AI动画视频创作平台 | 高效生成专业级故事动画" style="object-fit:cover;width:100%;height:100%;"> </a> <dl> <dt class="lineTwoOverflow"><a href="/ai/13096.html" class="aBlack" target="_blank" title="MagicLight">MagicLight</a></dt> <dd class="cont1 lineTwoOverflow"> MagicLight.ai是全球首款叙事驱动型AI动画视频创作平台，专注于解决从故事想法到完整动画的全流程痛点。它通过自研AI模型，保障角色、风格、场景高度一致性，让零动画经验者也能高效产出专业级叙事内容。广泛适用于独立创作者、动画工作室、教育机构及企业营销，助您轻松实现创意落地与商业化。 </dd> <dd class="cont2">5048次使用</dd> </dl> </li> </ul> </div>  <div class="rightContBox"> <div class="rightTit"> <a href="/articlelist.html" class="more" title="查看更多">查看更多<i class="iconfont"></i></a> <div class="tit lineOverflow">相关文章</div> </div> <ul class="aboutArticleRList"> <li> <dl> <dt class="lineTwoOverflow"><a href="/article/207000.html" class="aBlack" title="JavaScript函数定义及示例详解">JavaScript函数定义及示例详解</a></dt> <dd> <span class="left">2025-05-11</span> <span class="right">502浏览</span> </dd> </dl> </li> <li> <dl> <dt class="lineTwoOverflow"><a href="/article/72840.html" class="aBlack" title="优化用户界面体验的秘密武器：CSS开发项目经验大揭秘">优化用户界面体验的秘密武器：CSS开发项目经验大揭秘</a></dt> <dd> <span class="left">2023-11-03</span> <span class="right">501浏览</span> </dd> </dl> </li> <li> <dl> <dt class="lineTwoOverflow"><a href="/article/76259.html" class="aBlack" title="使用微信小程序实现图片轮播特效">使用微信小程序实现图片轮播特效</a></dt> <dd> <span class="left">2023-11-21</span> <span class="right">501浏览</span> </dd> </dl> </li> <li> <dl> <dt class="lineTwoOverflow"><a href="/article/83771.html" class="aBlack" title="解析sessionStorage的存储能力与限制">解析sessionStorage的存储能力与限制</a></dt> <dd> <span class="left">2024-01-11</span> <span class="right">501浏览</span> </dd> </dl> </li> <li> <dl> <dt class="lineTwoOverflow"><a href="/article/85057.html" class="aBlack" title="探索冒泡活动对于团队合作的推动力">探索冒泡活动对于团队合作的推动力</a></dt> <dd> <span class="left">2024-01-13</span> <span class="right">501浏览</span> </dd> </dl> </li> </ul> </div> </div> </div> <div class="footer"> <div class="footerIn"> <div class="footLeft"> <div class="linkBox"> <a href="/about/1.html" target="_blank" class="aBlack" title="关于我们">关于我们</a> <a href="/about/5.html" target="_blank" class="aBlack" title="免责声明">免责声明</a> <a href="#" class="aBlack" title="意见反馈">意见反馈</a> <a href="/about/2.html" class="aBlack" target="_blank" title="联系我们">联系我们</a> <a href="/send.html" class="aBlack" title="广告合作">内容提交</a> </div> <div class="footTip">Golang学习网：公益在线Go学习平台，帮助Go学习者快速成长！</div> <div class="shareBox"> <span><i class="qq"></i>技术交流群</span> </div> <div class="copyRight"> Copyright 2023 http://www.17golang.com/ All Rights Reserved ｜ <a href="https://beian.miit.gov.cn/" target="_blank" title="备案">苏ICP备2023003363号-1</a> </div> </div> <div class="footRight"> <ul class="encodeList"> <li> <div class="encodeImg"> <img src="/assets/examples/qrcode_for_gh.jpg" alt="Golang学习网"> </div> <div class="tit">关注公众号</div> <div class="tip">Golang学习网</div> </li> <div class="clear"></div> </ul> </div> <div class="clear"></div> </div> </div>  <style> .popupBg .n-error{ color: red; } </style> <div class="popupBg"> <div class="loginBoxBox"> <div class="imgbg"> <img src="/assets/images/leftlogo.jpg" alt=""> </div>  <div class="loginInfo encodeLogin" style="display: none;"> <div class="closeIcon" onclick="$('.popupBg').hide();"></div> <div class="changeLoginType cursorPointer create_wxqrcode" onclick="$('.loginInfo').hide();$('.passwordLogin').show();"> <div class="tip">密码登录在这里</div> </div> <div class="encodeInfo"> <div class="tit"><i></i> 微信扫码登录或注册</div> <div class="encodeImg"> <span id="wx_login_qrcode"><img src="/assets/examples/code.png" alt="二维码"></span>  </div> <div class="tip">打开微信扫一扫，快速登录/注册</div> </div> <div class="beforeLoginTip">登录即同意 <a href="#" class="aBlue" title="用户协议">用户协议</a> 和 <a href="#" class="aBlue" title="隐私政策">隐私政策</a></div> </div>  <div class="loginInfo passwordLogin"> <div class="closeIcon" onclick="$('.popupBg').hide();"></div> <div class="changeLoginType cursorPointer create_wxqrcode" onclick="$('.loginInfo').hide();$('.encodeLogin').show();"> <div class="tip">微信登录更方便</div> </div> <div class="passwordInfo"> <ul class="logintabs selfTabMenu"> <li class="selfTabItem loginFormLi curr">密码登录</li> <li class="selfTabItem registerFormBox ">注册账号</li> </ul> <div class="selfTabContBox"> <div class="selfTabCont loginFormBox" style="display: block;"> <form name="form" id="login-form" class="form-vertical form" method="POST" action="/index/user/login"> <input type="hidden" name="url" value="//17golang.com/article/561157.html"/> <input type="hidden" name="__token__" value="8461aab5a9c431ce1073d83c2321451f" /> <div class="form-group" style="height:70px;"> <input class="form-control" id="account" type="text" name="account" value="" data-rule="required" placeholder="邮箱/用户名" autocomplete="off"> </div> <div class="form-group" style="height:70px;"> <input class="form-control" id="password" type="password" name="password" data-rule="required;password" placeholder="密码" autocomplete="off"> </div> <div class="codeBox" style="height:70px;"> <div class="form-group" style="height:70px; width:205px; float: left;"> <input type="text" name="captcha" class="form-control" placeholder="验证码" data-rule="required;length(4)" /> </div> <span class="input-group-btn" style="padding:0;border:none;"> <img src="/captcha.html" width="100" height="45" onclick="this.src = '/captcha.html?r=' + Math.random();"/> </span> </div> <div class="other"> <a href="#" class="forgetPwd aGray" onclick="$('.loginInfo').hide();$('.passwordForget').show();" title="忘记密码">忘记密码</a> </div> <div class="loginBtn mt25"> <button type="submit">登录</button> </div> </form> </div> <div class="selfTabCont registerFormBox" style="display: none;"> <form name="form1" id="register-form" class="form-vertical form" method="POST" action="/index/user/register"> <input type="hidden" name="invite_user_id" value="0"/> <input type="hidden" name="url" value="//17golang.com/article/561157.html"/> <input type="hidden" name="__token__" value="8461aab5a9c431ce1073d83c2321451f" /> <div class="form-group" style="height:70px;"> <input type="text" name="email" id="email2" data-rule="required;email" class="form-control" placeholder="邮箱"> </div> <div class="form-group" style="height:70px;"> <input type="text" id="username" name="username" data-rule="required;username" class="form-control" placeholder="用户名必须3-30个字符"> </div> <div class="form-group" style="height:70px;"> <input type="password" id="password2" name="password" data-rule="required;password" class="form-control" placeholder="密码必须6-30个字符"> </div> <div class="codeBox" style="height:70px;"> <div class="form-group" style="height:70px; width:205px; float: left;"> <input type="text" name="captcha" class="form-control" placeholder="验证码" data-rule="required;length(4)" /> </div> <span class="input-group-btn" style="padding:0;border:none;"> <img src="/captcha.html" width="100" height="45" onclick="this.src = '/captcha.html?r=' + Math.random();"/> </span> </div> <div class="loginBtn"> <button type="submit">注册</button> </div> </form> </div> </div> </div> <div class="beforeLoginTip">登录即同意 <a href="https://www.17golang.com/about/3.html" target="_blank" class="aBlue" title="用户协议">用户协议</a> 和 <a href="https://www.17golang.com/about/4.html" target="_blank" class="aBlue" title="隐私政策">隐私政策</a></div> </div>  <div class="loginInfo passwordForget"> <div class="closeIcon" onclick="$('.popupBg').hide();"></div> <div class="returnLogin cursorPointer" onclick="$('.passwordForget').hide();$('.passwordLogin').show();">返回登录</div> <div class="passwordInfo"> <ul class="logintabs selfTabMenu"> <li class="selfTabItem">重置密码</li> </ul> <div class="selfTabContBox"> <div class="selfTabCont"> <form id="resetpwd-form" class="form-horizontal form-layer nice-validator n-default n-bootstrap form" method="POST" action="/api/user/resetpwd.html" novalidate="novalidate"> <div style="height:70px;"> <input type="text" class="form-control" id="email" name="email" value="" placeholder="输入邮箱" aria-invalid="true"> </div> <div class="codeBox" style="height:70px;"> <div class="form-group" style="height:70px; width:205px; float: left;"> <input type="text" name="captcha" class="form-control" placeholder="验证码" /> </div> <span class="input-group-btn" style="padding:0;border:none;"> <a href="javascript:;" class="btn btn-primary btn-captcha cursorPointer" style="background: #2080F8; border-radius: 4px; color: #fff; padding: 12px; position: absolute;" data-url="/api/ems/send.html" data-type="email" data-event="resetpwd">发送验证码</a> </span> </div> <input type="password" class="form-control" id="newpassword" name="newpassword" value="" placeholder="请输入6-18位密码"> <div class="loginBtn mt25"> <button type="submit">重置密码</button> </div> </form> </div> </div> </div> </div> </div> </div> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?3dc5666f6478c7bf39cd5c91e597423d"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> <script src="/assets/js/SyntaxHighlighter/shCore.js?3.1.1"></script> <script> document.addEventListener('DOMContentLoaded', function () { if (document.querySelector('.cont pre')) { SyntaxHighlighter.all(); } }); </script> <script src="/assets/js/require.js" data-main="/assets/js/require-frontend.js?v=1671101972"></script> </body> </html>

HTML如何开启图片懒加载提升性能

img 标签加 loading="lazy" 就完事了？别急，先看浏览器支持

img 标签加 `loading="lazy"` 就完事了？别急，先看浏览器支持