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<!DOCTYPE html> <html> <head> <title>Bootstrap 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.staticfile.net/twitter-bootstrap/4.3.1/css/bootstrap.min.css"> <script src="https://cdn.staticfile.net/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.staticfile.net/popper.js/1.15.0/umd/popper.min.js"></script> <script src="https://cdn.staticfile.net/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>加载按钮</h2> <p>按钮添加正在加载按钮:</p> <button class="btn btn-primary"> <span class="spinner-border spinner-border-sm"></span> </button> <button class="btn btn-primary"> <span class="spinner-border spinner-border-sm"></span> Loading.. </button> <button class="btn btn-primary" disabled> <span class="spinner-border spinner-border-sm"></span> Loading.. </button> <button class="btn btn-primary" disabled> <span class="spinner-grow spinner-grow-sm"></span> Loading.. </button> </div> </body> </html>
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