我想在所有页面上显示导航栏，但是我不想将粘贴相同的代码复制到所有html文件中。我试图将导航条形码放到另一个文件Navigation.html中，然后使用脚本将其加载回index.html，但是它不起作用。有人知道我在哪里犯错了吗？
这是navigation.html：
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="index.html">M M N</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="#">HOME<span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="ABC - Resume.pdf">RESUME</a>
</li>
<li class="nav-item">
<a class="nav-link" href="portfolio.html">PORTFOLIO</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
PHOTOGRAPHY
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="A.html">A</a>
<a class="dropdown-item" href="B.html">B</a>
<a class="dropdown-item" href="C.html">C</a>
<a class="dropdown-item" href="D.html">D</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
</div>
</nav>
这是index.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<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">
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<title>ABC</title>
</head>
<body>
<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>
<!--Navigation bar-->
<div class="container-fluid" id="nav-placeholder"></div>
<script>
$(function(){
$("#nav-placeholder").load("navigation.html");
});
</script>
<!--end of Navigation bar-->
<div class="container mt-5">
<h1>ABC</h1>
<div class="row">
<div class="col-lg-6">
<p>
ABC
</p>
<p>
ABC
</p>
</div>
<div class="col-lg-6">
<img class="img-responsive" src="ABC.jpg" alt="ABC" style="width:50%">
</div>
</div>
</div>
</body>
<footer class="pt-2 my-md-2 pt-md-2 border-top elegant-color-dark">
<div class="row justify-content-center elegant-color-dark">
<div>
<p>© ABC.</p>
</div>
</div>
</footer>
</html>
您可以使用ajax加载内容
<script>
$(function(){
$.ajax({
type: "GET",
url: "navigation.html",
dataType: "html",
success: function(answer) {
$("body").append(answer);
},
error: function(){
alert("failed call!!!");
}
});
return false;
});
</script> 如果导航栏将成为您网站的标题，传统上，它将被命名为header.html。
我更喜欢使用.php而不是.html来相互链接页面。这是我详细解释的链接：