我使用Python Flask构建了后端，并使用了没有CSS的基本HTML模板对其进行了测试，并且没有任何问题。但是，当我尝试实现Bootstrap时，它不会加载CSS。我已经将css和js文件放入一个静态文件夹中。
这是Bootstrap HTML标记：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<title>Simple Safety</title>
<!-- Bootstrap core CSS -->
<link href="{{ url_for('static', filename ='bootstrap.min.css') }}" rel="stylesheet">
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<link href="{{ url_for('static', filename =ie10-viewport-bug-workaround.css') }}" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="{{ url_for('static', filename ='style.css') }}" rel="stylesheet">
<!-- Just for debugging purposes. Don't actually copy these 2 lines! -->
<!--[if lt IE 9]><script src="../../assets/js/ie8-responsive-file-warning.js"></script><![endif]
<script type="text/javascript" src="{{ url_for('static', filename = 'ie-emulation-modes-warning.js') }}"></script>-->
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"> </script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"> </script>
<![endif]-->
</head>
<!--Main Content-->
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="{{url_for('https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/', filename='jquery.min.js') }}"></script>
<script>window.jQuery || document.write("<script type='text/javascript' src='{{ url_for('static', filename='jquery.min.js') }}''><\/script>")</script>
<script type="text/javascript" src="{{ url_for('static', filename ='bootstrap.min.js') }}"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script type="text/javascript" src="{{ url_for('static', filename='ie10-viewport-bug-workaround.js') }}"></script>
</body>
</html>
最佳答案
我意识到我已经将“静态”文件夹放置在“模板”文件夹中，这是我仅使用前端应用程序的一种旧习惯。您需要将“ static”文件夹放置在模板文件夹所在的目录中。
关于python - 无法使用Flask加载CSS，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/45939151/