代码示例：（标识：bs_progressbar_5）
<!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.min.js"></script>
</head>
<body>
<div class="p-4">
<h2>条纹进度条</h2>
<p>请使用 .progress-bar-striped 类向进度条添加条纹：</p>
<div class="progress">
<div class="progress-bar progress-bar-striped" style="width:30%"></div>
</div>
<br>
<div class="progress">
<div class="progress-bar bg-success progress-bar-striped" style="width:40%"></div>
</div>
<br>
<div class="progress">
<div class="progress-bar bg-info progress-bar-striped" style="width:50%"></div>
</div>
<br>
<div class="progress">
<div class="progress-bar bg-warning progress-bar-striped" style="width:60%"></div>
</div>
<br>
<div class="progress">
<div class="progress-bar bg-danger progress-bar-striped" style="width:70%"></div>
</div>
</div>
</body>
</html>
