加载静态文件,父模板的继承和扩展

用url_for加载静态文件

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

flask 从static文件夹开始寻找

可用于加载css, js, image文件

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

　　

2.继承和扩展

a.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

b.子模板继承父模板

  {% extends 'base.html’ %}

c.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 %}

d.子模板中写代码实现自己的需求。block

  {% block title %}登录{% endblock %}

3.首页、登录页、注册页都按上述步骤改写。

<div id="navigation">
            <header>
				<nav>
					<a href="">音乐</a>
					<a href="">电影</a>
					<a href="">电视剧</a>
                    <a href="">同城</a>
                    <a href="">读书</a>
                    <a href="">文艺</a>

                    <a href="{{ url_for('register')}}" class="right" >注册</a>
                    <a href="{{ url_for('login')}}" class="right" >登录</a>
                    <a href="{{ url_for ('base')}}" class="right">加入我们</a>
				</nav>
            </header>

<div id="bottomNavigate" style="text-align:center;clear:both">
                    <div class="img">
                          <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">
                         <img src="{{url_for('static',filename='image/DJ.jpg')}}"></a>
                        <p>
                            <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">演唱会</a>
                        </p>
                    </div>

                     <div class="img">
                          <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">
                         <img src="{{url_for('static',filename='image/harryPotter.jpg')}}"></a>
                        <p>
                            <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">奇幻</a>
                        </p>
                    </div>

                    <div class="img">
                          <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">
                         <img src="{{url_for('static',filename='image/allied.jpg')}}"></a>
                        <p>
                            <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">战争</a>
                        </p>
                    </div>

                    <div class="img">
                          <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">
                         <img src="{{url_for('static',filename='image/baster.jpg')}}"></a>
                        <p>
                            <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">文艺</a>
                        </p>
                    </div>

                    <div class="img">
                        <a href="https://baike.baidu.com/item/特洛伊/982419">
                            <img src="{{url_for('static',filename='image/family.jpg')}}">
                        </a>
                        <p>
                           <a href="https://baike.baidu.com/item/%E7%89%B9%E6%B4%9B%E4%BC%8A/982419">家庭</a>
                        </p>
                    </div>

                    <div class="img">
                          <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">
                         <img src="{{url_for('static',filename='image/beginagain.jpg')}}"></a>
                        <p>
                            <a href="https://baike.baidu.com/item/%E5%BC%A0%E5%9B%BD%E8%8D%A3/6804">小清新 </a>
                        </p>
                    </div>

                    <div class="img">
                        <a href="https://baike.baidu.com/item/%E7%BA%B5%E6%A8%AA%E5%9B%9B%E6%B5%B7/28113?fr=aladdin">
                            <img src="{{url_for('static',filename='image/lalaland.jpg')}}">
                            </a>
                        <p><a href="https://baike.baidu.com/item/%E7%BA%B5%E6%A8%AA%E5%9B%9B%E6%B5%B7/28113?fr=aladdin"> 歌舞</a>
                        </p>
                    </div>

     <div class="img">
                        <a href="https://baike.baidu.com/item/%E7%BA%B5%E6%A8%AA%E5%9B%9B%E6%B5%B7/28113?fr=aladdin">
                            <img src="{{url_for('static',filename='image/500withSummer.jpg')}}">
                            </a>
                        <p><a href="https://baike.baidu.com/item/%E7%BA%B5%E6%A8%AA%E5%9B%9B%E6%B5%B7/28113?fr=aladdin"> 爱情</a>
                        </p>
                    </div>

     <div class="img">
                        <a href="https://baike.baidu.com/item/%E7%BA%B5%E6%A8%AA%E5%9B%9B%E6%B5%B7/28113?fr=aladdin">
                            <img src="{{url_for('static',filename='image/loveRosie.jpg')}}">
                            </a>
                        <p><a href="https://baike.baidu.com/item/%E7%BA%B5%E6%A8%AA%E5%9B%9B%E6%B5%B7/28113?fr=aladdin">情感</a>
                        </p>
                    </div>
 </div>

    <footer>
        <a>关于我们</a>
    </footer>
    </div>

　

{% extends 'index.html' %}

{% block title %}注册{% endblock %}

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

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

    <script src="{{url_for('static',filename='js/fnRegister.js')}}">
    </script>
{% endblock %}

{% block loginContent %}

<div>
    <img id=judge src="http://www.mjjcn.com/mjjcnforum/data/attachment/album/201204/13/1841526inn6nm62evb7k1j.gif" onclick="onOff()" style="height:100px" width="100"></a>
</div>

    <div class="container" id="register">
        <form>
           <div class="inputStyle">
            <input class="inputFramework" type="text" id="username" placeholder="请输入用户名">
           </div>

           <div class="inputStyle">
            <input class="inputFramework" type="password" id="regisPassWord" placeholder="请输入您的密码">
           </div>

            <div class="inputStyle">
            <input class="inputFramework" type="password" id="again" placeholder="请再次输入您的密码">
           </div>

           <div>
                <br>
               <label><input id="loginButton" type="button" value="注册" onclick="fnregister();"/></label>
           </div>

           <div class="errorBox" id="errorRegister">
           </div>
     </form>
    </div>
{% endblock %}

　

登录页:

{% extends 'index.html' %}

{% block title %}登录{% endblock %}

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

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

    <script src="{{url_for('static',filename='js/fnRegister.js')}}">
    </script>
{% endblock %}


{% block loginContent %}
<body id="body">
<div>
    <img id=judge src="http://www.mjjcn.com/mjjcnforum/data/attachment/album/201204/13/1841526inn6nm62evb7k1j.gif" onclick="onOff()" style="height:100px" width="100"></a>
</div>

<div class="container" >
    <div id="login" >
        <form>
           <div class="inputStyle">
            <input class="inputFramework" type="text" id="username" placeholder="请输入用户名">
           </div>

           <div class="inputStyle">
            <input class="inputFramework" type="password" id="userpassword" placeholder="请输入密码">
           </div>

           <div class="checkBox">
            <label class="caption"><input class="loginCheckBox" type="radio" name="role" value="stu">学生</label>
            <label class="caption"><input class="loginCheckBox" type="radio" name="role" value="tea">教师</label>
               <br>
           </div>

           <div>
                <br>
               <label><input id="loginButton" type="button" value="登录" onclick="fnLogin();"/></label>
           </div>

           <div class="errorBox" id="errorName">
           </div>

           <div class="errorBox" id="errorPassWord">
           </div>
     </form>
    </div>
</div>

</body>
{% endblock %}

　

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原文地址：https://www.cnblogs.com/mavenlon/p/7782290.html