加载静态文件,父模板的继承和扩展

  1. 用url_for加载静态文件
    1. <script src="{{ url_for('static',filename='js/login.js') }}"></script>
    2. flask 从static文件夹开始寻找
    3. 可用于加载css, js, image文件
  2. 继承和扩展
    1. 把一些公共的代码放在父模板中，避免每个模板写同样的内容。base.html
    2. 子模板继承父模板
      1.   {% extends 'base.html’ %}
    3. 父模板提前定义好子模板可以实现一些自己需求的位置及名称。block
      1. <title>{% block title %}{% endblock %}-MIS问答平台</title>
      2. {% block head %}{% endblock %}
      3. {% block main %}{% endblock %}
    4. 子模板中写代码实现自己的需求。block
      1.   {% block title %}登录{% endblock %}
  3. 首页、登录页、注册页都按上述步骤改写。

父模板

<!DOCTYPE html>
<html lang="en">
<head>

    <meta charset="UTF-8">
    <title>模板-
        {% block title %}{% endblock %}
    </title>

    <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script>
    <script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>
    <link rel="stylesheet" type="text/css" href="../static/css/index.css">
    {% block head %}{% endblock %}

</head>
<body>

<div class="dao">
    <ul class="nav nav-pills">

        <li class="active"><a href="{{ url_for('base') }}">首页</a></li>
        <li><a href="{{ url_for('login') }}">登录</a></li>
        <li><a href="{{ url_for('register') }}">注册</a></li>
        <li><a href="#">帮助</a></li>

        <li>
            <a class="dropdown-toggle" data-toggle="dropdown" href="#">
                网站导航 <span class="caret"></span>
            </a>
            <ul class="dropdown-menu">
                <li><a href="#">链接1</a></li>
                <li><a href="#">链接2</a></li>
                <li><a href="#">链接3</a></li>
                <li><a href="#">链接4</a></li>

                <li class="divider"></li>
                <li><a href="#">戳一戳我</a></li>
            </ul>
        </li>
        <li>
            <input type="text" placeholder="请输入搜索关键词">
            <button class="sousuo" type="submit">搜索</button>
        </li>
    </ul>

</div>

{% block body %}{% endblock %}

<footer>
    <div class="footer_box">
        Copyright@ 2017-2022 个人版权，版权所有　　作者：pys　　广告位出租
    </div>
</footer>

</body>
</html>

注册html

<!DOCTYPE html>
<html lang="en">

<head>
    {% extends 'index.html' %}
    <meta charset="UTF-8">
    <title>{% block title %}
        MIS问答平台
    {% endblock %}</title>
    <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script>
    <script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>
    {% block head %}

        <script src="{{ url_for('static',filename='javascript/zhuce.js') }}"></script>
        <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/dl.css') }}">
    {% endblock %}
</head>
<body>
{% block body %}
    <div id="zcjm" class="panel panel-info">
        <h2 class="deng" class="panel-title">注册</h2>
        <div id="nr2" class="panel-body">

            <div class="input_box">
                Username :<input type="text" id="username" placeholder="请输入你的用户名">
            </div>
            <br>
            <div class="input_box">
                Userphone:<input type="text" id="userphone" placeholder="请输入你的手机号">
            </div>
            <br>
            <div class="input_box">
                Password : <input type="password" id="password" placeholder="请输入密码">
            </div>
            <br>
            <div class="input_box">
                Password : <input type="password" id="password2" placeholder="请再次输入密码">
            </div>

            <div class="error_box" id="error_box"><br></div>
            <div class="bt">

                <button class="zhuce" onclick="fnzhuce()">注册</button>
            </div>


        </div>


    </div>
{% endblock %}

</body>
</html>

登录html

<!DOCTYPE html>
<html lang="en">
<head>
    {% extends 'index.html' %}
    <meta charset="UTF-8">
    <title>
        {% block title %}
            MIS问答平台
        {% endblock %}</title>
    <script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script>
    <script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>
    <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
    {% block head %}

        <script src="{{ url_for('static',filename='javascript/dl.js') }}"></script>

        <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/dl.css') }}">

    {% endblock %}

</head>
{% block body %}
<body class="body">

    <div id="dljm" class="panel panel-info">
        <h2 class="deng" class="panel-title">登陆</h2>
        <div id="nr" class="panel-body">

            <div class="input_box">
                Username:<input type="text" id="username" placeholder="请输入用户名">
            </div>
            <br>
            <div class="input_box">
                Password: <input type="password" id="password" placeholder="请输入密码">
            </div>
            <div class="error_box" id="error_box"><br></div>
            <div class="bt">

                <button class="zhuce" onclick="fnLogin()">登录</button>
            </div>
            <br>
            <input type="radio" name="role" value="stu">学生
            <input type="radio" name="role" value="tea">教师<br>
            <input type="checkbox" value="true"><span>记住我</span><br><a
                href="http://www.gzcc.cn/html/yonghufenglei/xuesheng/">登陆遇到问题</a><br>
        </div>

    </div>
{% endblock %}

</body>
</html>

首页html

<!DOCTYPE html>
<html lang="en">

<head>
    {% extends 'index.html' %}
    <meta charset="UTF-8">
    <title>{% block title %}
        登录页
    {% endblock %}</title>
    {% block head %}
        <link rel="stylesheet" href="{{ url_for('static',filename='css/1020.css') }}" type="text/css">
    {% endblock %}
</head>

<body>
{% block body %}
    <div class="lianjie">
        <div class="img">
            <a href="http://www.gzcc.cn/"><img src="http://www.005.tv/uploads/allimg/160428/13-16042Q43401629.jpg"></a>
            <div class="desc"><a href="http://www.gzcc.cn/">我是链接1</a></div>
        </div>

        <div class="img">
            <a href="http://www.gzcc.cn/"><img src="http://www.deskier.com/uploads/allimg/170626/1-1F626213616.jpg"></a>
            <div class="desc"><a href="http://www.gzcc.cn/">我是链接2</a></div>
        </div>

        <div class="img">
            <a href="http://www.gzcc.cn/"><img
                    src="http://ww2.sinaimg.cn/large/9bfa86dcgw1f3zmypw1rwj21hc0u0765.jpg"></a>
            <div class="desc"><a href="http://www.gzcc.cn/">我是链接3</a></div>
        </div>

        <div class="img">
            <a href="http://www.gzcc.cn/"><img src="http://bizhi.pcze.com/zhuomian/1920x1200_1920x1080/52504.jpg"></a>
            <div class="desc"><a href="http://www.gzcc.cn/">我是链接4</a></div>
        </div>
        <div class="clearfloat">
            <img src="http://www.005.tv/uploads/allimg/160428/13-16042Q43401629.jpg">
            <img src="http://www.deskier.com/uploads/allimg/170626/1-1F626213616.jpg"><br>
            <img src="http://ww2.sinaimg.cn/large/9bfa86dcgw1f3zmypw1rwj21hc0u0765.jpg">
            <img src="http://bizhi.pcze.com/zhuomian/1920x1200_1920x1080/52504.jpg">
        </div>

    </div>
{% endblock %}


</body>

</html>

【推广】 免费学中医，健康全家人
原文地址：https://www.cnblogs.com/cch-1007/p/7788473.html