加载静态文件,父模板的继承和扩展

Posted 2020-10-13 学无止境真难

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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
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 %}

首页、登录页、注册页都按上述步骤改写。

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>{% block title %}
    {% endblock %}首页</title>
    <link rel="stylesheet" type="text/css" href="{{ url_for(\'static\',filename=\'css/99.css\')}}">
    <base href="" target="_blank">
    {% block head %}
    {% endblock %}
    <script>
        function myswitch() {
            var oBody = document.getElementById("myBody");
            var oOnoff = document.getElementById("myOnOff");
            if(oOnoff.src.match("bulbon")){
                oOnoff.src="http://www.runoob.com/images/pic_bulboff.gif";
                oBody.style.background="black";
                oBody.style.color ="white";
            }else{
                oOnoff.src="http://www.runoob.com/images/pic_bulbon.gif";
                oBody.style.background="white";
                oBody.style.color ="black";
            }
        }
    </script>
</head>
<body>
<nav>
    <img src="http://img.mp.itc.cn/upload/20170720/25678b6966bf4a79ae9d7b85df4f3531_th.jpg" width="40" height="40"
         alt="img.mp.itc.cn">
    <input type="text">
    <button type="submit">搜索</button>
    <a href="{{ url_for(\'index\') }}">首页</a>
    <a href="http://127.0.0.1:5000/login">登录</a>
    <a href="{{ url_for(\'regist\') }}">注册</a>
    <body id="myBody">
    <img id="myOnOff" onclick="myswitch()" src="http://www.runoob.com/images/pic_bulbon.gif" width="20px">
    <script>document.write(Date())</script>
    </body>
</nav>
{% block main %}
{% endblock %}
</body>
</html>

{% extends\'index.html\' %}

{% block title %}登录 {% endblock %}

{% block head %}
 <link rel="stylesheet" type="text/css" href="{{ url_for(\'static\',filename=\'css/886.css\') }}">
    <script src="{{ url_for(\'static\',filename=\'js/tt.js\')}}"></script>
{% endblock %}

{% block main %}
 <div class="box">
         <h2 class="dd">登录</h2>
         <div class="input_box">
             <input id="uname" type="text" placeholder="请输入用户名">
         </div>
         <div class="input_box">
             <input id="upass" type="password" placeholder="请输入密码">
         </div>
         <div id="error_box"><br></div>
         <div>
             <button class="jj" onclick="fnLogin()">登录</button>
        </div>
     </div>
{% endblock %}

{% extends\'index.html\' %}

{% block title %}注册 {% endblock %}

{% block head %}
    <link rel="stylesheet" type="text/css" href="{{ url_for(\'static\',filename=\'css/886.css\') }}">
    <script src="{{ url_for(\'static\',filename=\'js/00.js\')}}"></script>
{% endblock %}

{% block main %}
    <div class="box">
        <h2 class="dd">注册</h2>
        <div class="input_box">
            <input id="uname" type="text" placeholder="请输入昵称">
        </div>
        <div class="input_box">
            <input id="upass" type="password" placeholder="请输入密码">
        </div>
        <div class="input_box">
            <input id="upass1" type="password" placeholder="请再次输入密码">
        </div>
        <div id="error_box"><br></div>
        <div>
            <button class="jj" onclick="tnlogin()">注册</button>

        </div>
    </div>
{% endblock %}

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