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<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container mt-3"> <h2>手风琴实例</h2> <p><strong>注释：</strong><code>data-bs-parent</code> 属性确保在显示可折叠项目之一时，将关闭指定父项下的所有可折叠元素。</p> <div id="accordion"> <div class="card"> <div class="card-header"> <a class="btn" data-bs-toggle="collapse" href="#collapseOne"> 可折叠组项目 #1 </a> </div> <div id="collapseOne" class="collapse show" data-bs-parent="#accordion"> <div class="card-body"> <h3>春日</h3> <p>胜日寻芳泗水滨，无边光景一时新。</p> <p>等闲识得东风面，万紫千红总是春。</p> </div> </div> </div> <div class="card"> <div class="card-header"> <a class="collapsed btn" data-bs-toggle="collapse" href="#collapseTwo"> 可折叠组项目 #2 </a> </div> <div id="collapseTwo" class="collapse" data-bs-parent="#accordion"> <div class="card-body"> <h3>初夏绝句</h3> <p>纷纷红紫已成尘，布谷声中夏令新。</p> <p>夹路桑麻行不尽，始知身是太平人。</p> </div> </div> </div> <div class="card"> <div class="card-header"> <a class="collapsed btn" data-bs-toggle="collapse" href="#collapseThree"> 可折叠组项目 #3 </a> </div> <div id="collapseThree" class="collapse" data-bs-parent="#accordion"> <div class="card-body"> <h3>山行</h3> <p>远上寒山石径斜，白云生处有人家。</p> <p>停车坐爱枫林晚，霜叶红于二月花。</p> </div> </div> </div> </div> </div> </body> </html>