代码示例:(标识:bs_form_disabled)
<!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.bootcdn.net/ajax/libs/twitter-bootstrap/5.1.2/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.1.2/js/bootstrap.bundle.js"></script>
</head>
<body>

<div class="p-4">
  <h2>禁用和只读</h2>
  <p>请使用 disabled 和/或 readonly 属性禁用输入字段:</p>
  <form>
    <input type="text" class="form-control" placeholder="普通输入控件">
    <input type="text" class="form-control mt-3" placeholder="被禁用的输入控件" disabled>
    <input type="text" class="form-control mt-3" placeholder="只读的输入控件" readonly>
  </form>
</div>

</body>
</html>
运行结果: