源代码 ：
点击运行
<!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.org/twitter-bootstrap/4.3.1/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/popper.js/1.15.0/umd/popper.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>面包屑导航</h2> <p>.breadcrumb 和 .breadcrumb-item 类用于设置面包屑导航：</p> <ul class="breadcrumb"> <li class="breadcrumb-item"><a href="#">Photos</a></li> <li class="breadcrumb-item"><a href="#">Summer 2017</a></li> <li class="breadcrumb-item"><a href="#">Italy</a></li> <li class="breadcrumb-item active">Rome</li> </ul> </div> </body> </html>
运行结果