Bootstrap 4 - 麵包屑

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描述

用於顯示網站基於層次結構的資訊，並指示當前頁面在導航層次結構中的位置。Bootstrap 使用“.breadcrumb”類將列表定義為麵包屑，並透過 CSS 向列表新增分隔符。

以下示例演示此內容 -

示例

即時演示 
<html lang = "en">
   <head>
      <!-- Meta tags -->
      <meta charset = "utf-8">
      <meta name = "viewport" content = "width = device-width, initial-scale = 1, shrink-to-fit = no">
      
      <!-- Bootstrap CSS -->
      <link rel = "stylesheet" 
         href = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" 
         integrity = "sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" 
         crossorigin = "anonymous">
      
      <title>Bootstrap 4 Example</title>
   </head>
   
   <body>
      <div class = "container">
         <h2>Breadcrumb</h2>
         <nav aria-label = "breadcrumb">
            <!--Add the "breadcrumb" class to ul element that represents the breadcrumb-->
            <ul class = "breadcrumb">
               <!--Add the ".breadcrumb-item" class to each li element within the breadcrumb-->
               <li class = "breadcrumb-item"><a href = "#">Home</a></li>
               <li class = "breadcrumb-item"><a href="#">Tutorials Library</a></li>
               <!--Add the "active" class to li element to represent the current page-->
               <li class = "breadcrumb-item active" aria-current = "page">Bootstrap 4</li>
            </ul>
         </nav>
      </div>
      
      <!-- jQuery first, then Popper.js, then Bootstrap JS -->
      <script src = "https://code.jquery.com/jquery-3.3.1.slim.min.js" 
         integrity = "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" 
         crossorigin = "anonymous">
      </script>
      
      <script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" 
         integrity = "sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" 
         crossorigin = "anonymous">
      </script>
      
      <script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" 
         integrity = "sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" 
         crossorigin = "anonymous">
      </script>
      
   </body>
</html>

將生成以下結果 -

輸出

bootstrap4_components.htm
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