我正在开发一个项目，其中要求单击超链接，页面将显示为模式弹出窗口。 如何做到这一点？
从您的问题了解，您正在寻找如何制作一个模态弹出窗口，只需在网上单击一下即可：
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<div class="container">
<h2>Modal Example</h2>
<!-- Trigger the modal with a button -->
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>
<!-- Modal -->
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Modal Header</h4>
</div>
<div class="modal-body">
<p>Some text in the modal.</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
如果您想要文本（h1）来打开该弹出窗口，您可以替换
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>
与
<h1 type="button" data-toggle="modal" data-target="#myModal">Open Modal</button>
使用以下代码。
function show_modal(e)
{
console.log (e.href);
$("#iframe_modal").attr("src", e.href);
$('#myModal').modal('show');
return false;
}<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
<div class="container">
<h2>Pop Up Modals</h2>
<a href="https://www.youtube.com/embed/d7sewLjzNs0" class="btn btn-primary" onclick="return show_modal(this);">Open YouTube Video 1</a>
<a href="https://www.youtube.com/embed/cUMrRYoUZMs" class="btn btn-primary" onclick="return show_modal(this);">Open YouTube Video 2</a>
</div>
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Modal Header</h4>
</div>
<div class="modal-body">
<iframe id="iframe_modal" src="" style="width: 100%; height: 40%;"></iframe>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>