17.首页导航条实现和代码抽离
（1）temlates/common/_head.html
<meta name="csrf-token" content="{{ csrf_token() }}">
<script src="http://cdn.bootcss.com/jquery/3.1.1/jquery.min.js"></script>
<link href="http://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<script src="http://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="{{ url_for('static',filename='common/zlparam.js') }}"></script>
<script src="{{ url_for('static',filename="common/zlajax.js") }}"></script>
<link rel="stylesheet" href="{{ url_for('static',filename='common/sweetalert/sweetalert.css') }}">
<script src="{{ url_for('static',filename='common/sweetalert/sweetalert.min.js') }}"></script>
<script src="{{ url_for('static',filename='common/sweetalert/zlalert.js') }}"></script>
（2）cms/cms_base.html
<head> <meta charset="UTF-8"> <title>{% block title %}{% endblock %}</title> <link rel="stylesheet" href="{{ static('cms/css/base.css') }}"> <script src="{{ static('cms/js/base.js') }}"></script> {% include "common/_head.html" %} {% block head %}{% endblock %} </head>
（3）front/front_base.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> {% include "common/_head.html" %} <title>{% block title %}{% endblock %}</title> {% block head %}{% endblock %} </head> <body> <nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="/">仙剑论坛</a> </div> <!-- Collect the nav links, forms, and other content for toggling --> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav"> <li class="active"><a href="#">首页 <span class="sr-only">(current)</span></a></li> </ul> <form class="navbar-form navbar-left"> <div class="form-group"> <input type="text" class="form-control" placeholder="请输入关键字"> </div> <button type="submit" class="btn btn-default">搜索</button> </form> <ul class="nav navbar-nav navbar-right"> <li><a href="{{ url_for('front.signin') }}">登录</a></li> <li><a href="{{ url_for('front.signup') }}">注册</a></li> </ul> </div><!-- /.navbar-collapse --> </div><!-- /.container-fluid --> </nav> {% block body %} {% endblock %} </body> </html>
（4）front/front_index.html
{% extends "front/front_base.html" %}
{% block title %}
仙剑论坛
{% endblock %}
{% block head %}
{% endblock %}
{% block body %}
论坛首页
{% endblock %}
（5）front/views.y
@bp.route('/') def index(): return render_template('front/front_index.html')