我对此并不陌生，所以请多多包涵。我从Bootstrap复制了该导航栏代码，并对其进行了调整以适合我的代码。
我有一个包含三个下拉列表的下拉列表。我希望用户有两个选择。他们可以转到投资组合页面并在其中找到链接，也可以使用下拉菜单。
当最后一个包含bootstrap.min.js的脚本在代码中时，指向投资组合页面的链接不起作用。不知道为什么这不起作用。如果我将下拉列表设为常规链接，则会转到投资组合页面。这是我的代码：
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<link rel ="stylesheet" type="text/css" href="style.css">
<title>Do You Know Jennipher</title>
</head>
<nav class="navbar sticky-top navbar-expand-lg">
<a class="navbar-brand" href="index.html">Do You Know Jennipher</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="index.html">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="aboutme.html">About Me</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" href="previous_work.html">Portfolio</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="previous_work.html">Egyptian Petrdise</a>
<a class="dropdown-item" href="previous_work.html">Movie Madness</a>
<a class="dropdown-item" href="previous_work.html">George's Safari Adventure</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link" href="gallery.html">Gallery</a>
</li>
<li class="nav-item">
<a class="nav-link" href="say_hello.html">Say Hello</a>
</li>
</ul>
</div>
</nav>
<header>
<div class="flex-container">
<img src="images/banner_ad.jpg" class="banner" alt="banner ad">
</div>
</header>
<body>
<section class="intro">
<div class="container">
<div class="row">
<div class="col-6">
<img src="images/mountains.jpg" alt="rocky mountains" class="mountain" width="500px">
</div>
<div class="col-6">
<p class="intro-text">Hello, my name is Jennipher </p>
</div>
</div>
</div>
</section>
<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/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous">
</script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous">
</script>
</body>
<footer>
<p class="footer">© Copyright 2019 Jennipher Samms</p>
</footer>
</html>
答案 0 :(得分：0)
min.js库没有任何问题。只有您应该遵循完美的正文布局和语法。最好始终在<script>标记结束之前保留</body>文件。最后，您忘了在体内写一些元素，而是在body标签外写了它们。我刚刚调整了一些代码。检查一次。
<html lang="en">
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<link rel ="stylesheet" type="text/css" href="style.css">
<title>Do You Know Jennipher</title>
</head>
<body>
<nav class="navbar sticky-top navbar-expand-lg">
<a class="navbar-brand" href="index.html">Do You Know Jennipher</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="index.html">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="aboutme.html">About Me</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" href="previous_work.html">Portfolio</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="previous_work.html">Egyptian Petrdise</a>
<a class="dropdown-item" href="previous_work.html">Movie Madness</a>
<a class="dropdown-item" href="previous_work.html">George's Safari Adventure</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link" href="gallery.html">Gallery</a>
</li>
<li class="nav-item">
<a class="nav-link" href="say_hello.html">Say Hello</a>
</li>
</ul>
</div>
</nav>
<header>
<div class="flex-container">
<img src="images/banner_ad.jpg" class="banner" alt="banner ad">
</div>
</header>
<section class="intro">
<div class="container">
<div class="row">
<div class="col-md-6">
<img src="images/mountains.jpg" alt="rocky mountains" class="mountain" width="500px">
</div>
<div class="col-md-6">
<p class="intro-text">Hello, my name is Jennipher </p>
</div>
</div>
</div>
</section>
<footer>
<p class="footer text-center">© Copyright 2019 Jennipher Samms</p>
</footer>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
</body>
</html>
为了更好的练习，请阅读此link