【发布时间】：2020-05-14 05:53:59
【问题描述】：
从教程构建我的第一个 Django 应用程序，几乎一字不差地按照说明进行操作，但我的导航栏下拉菜单不起作用，我无法注销或更改密码。
这是我的 base.html 文件，我不知道 html 我从教程中复制了这段代码，也许我弄乱了任何东西，请看看并帮助我解决问题，谢谢 :)
<!-- templates/base.html -->
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,
initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet"
href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81i\
uXoPkFOJwJ8ERdknLPMO"
crossorigin="anonymous">
<title>{% block title %}Bk - Newspaper App {% endblock title %}</title>
</head>
<body>
<nav class="navbar navbar-expand-md navbar-dark bg-dark mb-4">
<a class="navbar-brand" href="{% url 'home' %}">Bk-Styles-007</a>
{% if user.is_authenticated %}
<ul class="navbar-nav mr-auto">
<li class="nav-item"><a href="{% url 'article_new' %}">+ New</a></li>
</ul>
{% endif %}
<button class="navbar-toggler" type="button" data-toggle="collapse"
data-target="#navbarCollapse" aria-controls="navbarCollapse"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarCollapse">
{% if user.is_authenticated %}
<ul class="navbar-nav ml-auto">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="userMenu"
data-toggle="dropdown" aria-haspopup="true"
aria-expanded="false">
{{ user.username }}
</a>
<div class="dropdown-menu dropdown-menu-right"
aria-labelledby="userMenu">
<a class="dropdown-item"
href="{% url 'password_change' %}">Change password</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="{% url 'logout' %}">
Log Out</a>
</div>
</li>
</ul>
{% else %}
<form class="form-inline ml-auto">
<a href="{% url 'login' %}" class="btn btn-outline-secondary">
Log In</a>
<a href="{% url 'signup' %}" class="btn btn-primary ml-2">
Sign up</a>
</form>
{% endif %}
</div>
</nav>
<div class="container">
{% block content %}
{% endblock content %}
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha384-8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAKl8WvCWPIPm49"
crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ/6OW/JmZQ5stwEULTy"
crossorigin="anonymous"></script>
</body>
**我更新到
<li class="nav-item dropdown">
但仍然面临同样的问题。
.**
【问题讨论】：
标签： python html css django bootstrap-4