onclick 事件属性在用户单击按钮时起作用。当鼠标点击元素时，脚本就会运行。 句法： 属性值：此属性包含单值脚本，当鼠标单击元素时该脚本起作用。 支持的标签：除 、、、、、、<meta>、<param>、<script>、<style 之外的所有 HTML 标签都支持此属性> 和 <标题>。</p> <p><strong>示例 1：</strong></p> <p></p> <div class="_ap_apex_ad" id="d6f45c53-ff16-4cc5-8b91-eb6ee7037116" style="min-height:280px"></div> <p></p> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE HTML> <html> <head> <title> onclick event attribute </title> <script> /* If onclick event call then this script will run */ function onclick_event() { document.getElementById("geeks").innerHTML = "Welcome to GeeksforGeeks!"; } </script> </head> <body style = "text-align:center"> <!-- onclick event call here --> <p id = "geeks" onclick = "onclick_event()"> Click Here </p> </body> </html> </code></pre> </div> <p><strong>输出：</strong><br/><strong>前：</strong> </p> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace">Click Here</code></pre> </div> <p><strong>后：</strong> </p> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace">Welcome to GeeksforGeeks!</code></pre> </div> <p><strong>示例2：</strong>使用按钮标签调用事件。 </p> <div class="hcb_wrap"> <pre class="prism line-numbers lang-html" data-lang="HTML"><code class="replace"><!DOCTYPE html> <html> <head> <title> onclick event attribute </title> <script> function funonclick() { document.getElementById("geeks").innerHTML = "Welcome to GeeksforGeeks!"; } </script> </head> <body style = "text-align:center"> <!-- onclick event call here --> <button onclick = "funonclick()"> Click Here </button> <p id = "geeks"></p> </body> </html> </code></pre> </div> <p><strong>输出：</strong> <br/><img alt="" class="img-fluid" src="https://mangodoc.oss-cn-beijing.aliyuncs.com/geek8geeks/HTML_%7C_onclick_Event_Attribute_0.jpg"/></p> <p><strong>支持的浏览器：</strong> onclick 事件属性支持的浏览器如下：</p> <ul> <li>谷歌浏览器</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> <!-- 引入Bootstrap JavaScript库 --> <script src="https://unpkg.com/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js" crossorigin="anonymous"></script> <!-- 引入Meilisearch搜索相关的JavaScript库 --> <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> <!-- 引入prismjs代码高亮相关的JavaScript库 --> <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>