当用户按下键盘上的键时会触发此属性。此事件属性不能用于所有浏览器中的所有键（例如 ALT、CTRL、SHIFT、ESC）。支持的标签：所有 HTML 元素，除了： <基地> <头> </li> <li> <元></li> <li> <参数></li> <li> <脚本></li> <li> <样式></li> <li> <标题></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 onkeypress="script"></code></pre> </div> <p><strong>属性：</strong> onkeydown 属性适用于所有浏览器中的所有键。该脚本将在 onkeypress 属性调用时运行。<br/><strong>注意：</strong>与 onkeypress 事件相关的事件顺序：</p> <ul> <li>按键按下</li> <li>按键</li> <li>上键</li> </ul> <p><strong>例子：</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>onkeypress attribute</title> <style> body { text-align:center; } h1 { color:green; } </style> </head> <body> <h1>GeeksforGeeks</h1> <h2>onkeypress attribute</h2> <input type="text" onkeypress="GeeksForGeeks()"> <script> function GeeksForGeeks() { alert("Welcome to GeeksForGeeks!"); } </script> </body> </html></code></pre> </div> <p></p> <hr/> </div> <p><strong>输出：</strong><br/>单击文本框之前： </p> <p></p> <div class="_ap_apex_ad" id="d6f45c53-ff16-4cc5-8b91-eb6ee7037116" style="min-height:280px"></div> <p></p> <p><img alt="" class="img-fluid" src="https://mangodoc.oss-cn-beijing.aliyuncs.com/geek8geeks/HTML_%7C_onkeypress_Attribute_0.jpg"/></p> <p>点击文本框后： </p> <p><img alt="" class="img-fluid" src="https://mangodoc.oss-cn-beijing.aliyuncs.com/geek8geeks/HTML_%7C_onkeypress_Attribute_1.jpg"/></p> <p><strong>支持的浏览器：</strong> onkeypress 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>歌剧</li> <li>苹果Safari </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>