HTML | onload 事件属性

此属性在加载对象时起作用。此属性主要用于元素中以执行脚本。它也可以与其他元素一起使用。该属性用于检查访问者的浏览器类型和浏览器版本，并根据信息加载正确版本的网页。
支持的标签：

<身体>
<框架>
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</strong></li> <li> <strong><图片></strong></li> <li> <strong><输入类型=”图像”></strong></li> <li> <strong><链接></strong></li> <li> <strong><脚本></strong></li> <li> <strong><样式></strong></li> </ul> <p><strong>句法：</strong> </p> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><element onload = "script"></code></pre> </div> <p><strong>属性值：</strong>该属性包含单值<i>脚本</i>，在触发 onload 事件时运行。此属性与许多 HTML 元素相关联。<br/><strong>示例 1：</strong></p> <div> <h5 class="code">html</h5> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE html> <html> <head> <title>onload event attribute</title> <script> function Function() { alert("Page is loaded"); } </script> <style> body { text-align:center; } h1 { color:green; } </style> </head> <body onload="Function()"> <h1>GeeksforGeeks</h1> <h2>onload event attribute</h2> </body> </html></code></pre> </div> <p></p> <hr/> <h5 class="code">html</h5> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE html> <html> <head> <title>onload event attribute</title> </head> <body> <img src= "https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-9.png" onload="loadImage()" width="500" height="132"> <script> function loadImage() { alert("Image loaded successfully"); } </script> </body> </html></code></pre> </div> <p></p> <hr/> </div> <p><strong>输出：</strong> </p> <p><img alt="" class="img-fluid" src="https://mangodoc.oss-cn-beijing.aliyuncs.com/geek8geeks/HTML_%7C_onload_Event_Attribute_0.jpg"/></p> <p></p> <div class="_ap_apex_ad" id="d6f45c53-ff16-4cc5-8b91-eb6ee7037116" style="min-height:280px"></div> <p></p> <p><strong>示例 2：</strong></p> <div class="responsive-tabs"> <h2 class="tabtitle"> html </h2> <div class="tabcontent"> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE html> <html> <head> <title>onload event attribute</title> </head> <body> <img src= "https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-9.png" onload="loadImage()" width="500" height="132"> <script> function loadImage() { alert("Image loaded successfully"); } </script> </body> </html> </code></pre> </div> </div> </div> <p><strong>输出：</strong> </p> <p><img alt="" class="img-fluid" src="https://mangodoc.oss-cn-beijing.aliyuncs.com/geek8geeks/HTML_%7C_onload_Event_Attribute_1.jpg"/></p> <p><strong>支持的浏览器：</strong> <i>onload</i>属性支持的浏览器如下：</p> <ul> <li>铬合金</li> <li>IE浏览器</li> <li>火狐</li> <li>苹果浏览器</li> <li>歌剧</li> </ul> <div class="_ap_apex_ad" id="82d2079a-8120-480f-9fc7-5cda825d56e7" style="min-height:280px"></div> <p></p></div> </article> </div> </div> </div> </div> </div> <footer> <div class="bg-white text-center pb-1"> <p class="text-body-tertiary pt-3 lh-lg text-opacity-50" id="footer-text">Copyright © 2020 - 2024 版权所有 <br> <a href="https://beian.miit.gov.cn/" target="_blank" class="text-opacity-50 text-body-tertiary mt-1 mb-1">蜀ICP备20006366号-1</a> <br> Made with ❤️ in Chengdu </p> </div> </footer>  <script src="https://unpkg.com/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js" crossorigin="anonymous"></script>  <script src="https://cdn.jsdelivr.net/npm/@meilisearch/instant-meilisearch/dist/instant-meilisearch.umd.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/instantsearch.js@4"></script> <script src="https://imangodoc.com/static/javascript/meili_custom.js"></script>  <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/components/prism-core.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/plugins/toolbar/prism-toolbar.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/plugins/autoloader/prism-autoloader.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/prismjs@1.29.0/plugins/copy-to-clipboard/prism-copy-to-clipboard.min.js"></script> </body> </html>