我已经被这个问题困扰了好几天了。我在任何地方都找不到任何解决方案，所以我问这里的专家：-(
我无法打开手机菜单。什么都没发生。
它看起来像：
<nav class="navbar navbar-expand-lg navbar-light">
<div class="container">
<a class="navbar-brand" href="/">
<img src="/static/img/logo.svg" alt="logo">
</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent"
id="toggleMobileNav" aria-controls="navbarSupportedContent" aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse navbar-mobile" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link mobile-nav-link"href="/#features">Features</a>
</li>
<li class="nav-item">
<a class="nav-link mobile-nav-link"href="/#download">Download</a>
</li>
<li class="nav-item">
<a class="nav-link mobile-nav-link" href="/about">About us</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/faq">FAQ</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/blog">Blog</a>
</li>
</ul>
</div>
</div>
</nav>
同时，我已经用bootstraps5官方文档中给出的代码替换了它(https://getbootstrap.com/docs/5.0/components/navbar/)
我看了几段youtube视频，他们只是把它粘贴起来，就成功了。甚至bootstrap5文档中的示例也不起作用。。有人能发现错误吗？
感谢
您可能需要从这里开始；
https://getbootstrap.com/docs/5.0/getting-started/introduction/
如果正确地结合了bootstrap，那么代码肯定有效。这听起来确实像是你错过了一些要点，比如所需的javascript。
在任何事情上，我总是建议从头开始，而不是从中间或结尾开始。
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<title>Hello, world!</title>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light">
<div class="container">
<a class="navbar-brand" href="/">
<img src="/static/img/logo.svg" alt="logo">
</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent"
id="toggleMobileNav" aria-controls="navbarSupportedContent" aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse navbar-mobile" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link mobile-nav-link"href="/#features">Features</a>
</li>
<li class="nav-item">
<a class="nav-link mobile-nav-link"href="/#download">Download</a>
</li>
<li class="nav-item">
<a class="nav-link mobile-nav-link" href="/about">About us</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/faq">FAQ</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/blog">Blog</a>
</li>
</ul>
</div>
</div>
</nav>
<!-- Option 1: Bootstrap Bundle with Popper -->
<!-- THIS IS AN IMPORTANT PART -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
</body>
</html>你可能正在看的视频已经假设你已经完成了基本功。
按照我链接的指南，它甚至包含一个可以使用和构建的入门模板。这基本上就是我所做的，然后将你的代码复制并粘贴到相关区域，使其发挥作用。