我有一个非常简单的用例。我从链接https://startbootstrap.com/template-overviews/clean-blog/下载了烧瓶清洁博客文件，我打算建立一个博客网站。
对于初学者，我只是尝试使用一个非常简单的脚本加载索引页面：
Test.py：
from flask import Flask,render_template
app = Flask(__name__)
@app.route('/index')
def index():
return render_template('index.html')
if __name__ == '__main__':
app.run(debug=True)
我有以下模块结构：
C:.
│ Test.py
│
├───static
│ └───css
│ bootstrap.min.css
│ clean-blog.min.css
│ font-awesome.min.css
│
└───templates
index.html
现在我的index.html文件如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Clean Blog - Start Bootstrap Theme</title>
<!-- Bootstrap core CSS -->
<link rel="stylesheet" href="{{ url_for('static',filename='css/bootstrap.min.css') }}" >
<!-- Custom fonts for this template -->
<link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/font-awesome.min.css') }}" >
<link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Lora:400,700,400italic,700italic' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800' rel='stylesheet' type='text/css'>
<!-- Custom styles for this template -->
<link rel="stylesheet" href="{{ url_for('static',filename='css/clean-blog.min.css') }}" >
</head>
<body>
<!-- Navigation -->
<nav class="navbar navbar-expand-lg navbar-light fixed-top" id="mainNav">
<div class="container">
<a class="navbar-brand" href="index.html">Start Bootstrap</a>
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
Menu
<i class="fa fa-bars"></i>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="index.html">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="about.html">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="post.html">Sample Post</a>
</li>
<li class="nav-item">
<a class="nav-link" href="contact.html">Contact</a>
</li>
</ul>
</div>
</div>
</nav>
<!-- Page Header -->
<header class="masthead" style="background-image: url('img/home-bg.jpg')">
<div class="overlay"></div>
<div class="container">
<div class="row">
<div class="col-lg-8 col-md-10 mx-auto">
<div class="site-heading">
<h1>Clean Blog</h1>
<span class="subheading">A Blog Theme by Start Bootstrap</span>
</div>
</div>
</div>
</div>
</header>
<!-- Main Content -->
<div class="container">
<div class="row">
<div class="col-lg-8 col-md-10 mx-auto">
<div class="post-preview">
<a href="post.html">
<h2 class="post-title">
Man must explore, and this is exploration at its greatest
</h2>
<h3 class="post-subtitle">
Problems look mighty small from 150 miles up
</h3>
</a>
<p class="post-meta">Posted by
<a href="#">Start Bootstrap</a>
on September 24, 2018</p>
</div>
<hr>
<div class="post-preview">
<a href="post.html">
<h2 class="post-title">
I believe every human has a finite number of heartbeats. I don't intend to waste any of mine.
</h2>
</a>
<p class="post-meta">Posted by
<a href="#">Start Bootstrap</a>
on September 18, 2018</p>
</div>
<hr>
<div class="post-preview">
<a href="post.html">
<h2 class="post-title">
Science has not yet mastered prophecy
</h2>
<h3 class="post-subtitle">
We predict too much for the next year and yet far too little for the next ten.
</h3>
</a>
<p class="post-meta">Posted by
<a href="#">Start Bootstrap</a>
on August 24, 2018</p>
</div>
<hr>
<div class="post-preview">
<a href="post.html">
<h2 class="post-title">
Failure is not an option
</h2>
<h3 class="post-subtitle">
Many say exploration is part of our destiny, but it’s actually our duty to future generations.
</h3>
</a>
<p class="post-meta">Posted by
<a href="#">Start Bootstrap</a>
on July 8, 2018</p>
</div>
<hr>
<!-- Pager -->
<div class="clearfix">
<a class="btn btn-primary float-right" href="#">Older Posts →</a>
</div>
</div>
</div>
</div>
<hr>
<!-- Footer -->
<footer>
<div class="container">
<div class="row">
<div class="col-lg-8 col-md-10 mx-auto">
<ul class="list-inline text-center">
<li class="list-inline-item">
<a href="#">
<span class="fa-stack fa-lg">
<i class="fa fa-circle fa-stack-2x"></i>
<i class="fa fa-twitter fa-stack-1x fa-inverse"></i>
</span>
</a>
</li>
<li class="list-inline-item">
<a href="#">
<span class="fa-stack fa-lg">
<i class="fa fa-circle fa-stack-2x"></i>
<i class="fa fa-facebook fa-stack-1x fa-inverse"></i>
</span>
</a>
</li>
<li class="list-inline-item">
<a href="#">
<span class="fa-stack fa-lg">
<i class="fa fa-circle fa-stack-2x"></i>
<i class="fa fa-github fa-stack-1x fa-inverse"></i>
</span>
</a>
</li>
</ul>
<p class="copyright text-muted">Copyright © Your Website 2018</p>
</div>
</div>
</div>
</footer>
<!-- Bootstrap core JavaScript -->
<script src="vendor/jquery/jquery.min.js"></script>
<script src="vendor/bootstrap/js/bootstrap.bundle.min.js"></script>
<!-- Custom scripts for this template -->
<script src="js/clean-blog.min.js"></script>
</body>
</html>
我不确定为什么，但这似乎不起作用。导航栏不可见。
更改线条时更奇怪：
<link rel="stylesheet" href="{{ url_for('static',filename='css/bootstrap.min.css') }}" >
<link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/font-awesome.min.css') }}" >
<link rel="stylesheet" href="{{ url_for('static',filename='css/clean-blog.min.css') }}" >
到
<link rel="stylesheet" href="{{ url_for('static',filename='bootstrap.min.css') }}" >
<link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='font-awesome.min.css') }}" >
<link rel="stylesheet" href="{{ url_for('static',filename='clean-blog.min.css') }}" >
一切正常，我可以看到缩进和导航栏正常工作。理想情况下，它不应该工作，因为css文件位于/ static / css文件夹中，而不是直接在静态下。
有人可以告诉我这里有什么问题吗？
提前致谢。
答案 0 :(得分：0)
您的路径/文件夹中似乎有问题：Flask似乎在提供static/css/而不是static/的文件。
尝试使用这些参数：
app = Flask(__name__, static_url_path='/static',static_folder='static/')