zig Tryit Editor

<!DOCTYPE html>
<html lang="zh" class="svg no-js">
<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="../../maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
  <script src="../../ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
  <script src="../../maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>Button Methods</h2>
  <p>The <strong>loading</strong> method disables the button and changes the button text to "loading...".</p>
  <button type="button" class="btn btn-default">Example Button</button>
</div>
<script>
  $(document).ready(function () {
    $(".btn").click(function () {
      $(this).button('loading');
    });
  });
</script>
</body>

</html>