1
<html lang="en">
<head>
<meta charset="UTF-8">
<title>首页-{% block title %}{%endblock%}</title>
<script src="../static/js/base.js"></script>
<link type="text/css" rel="stylesheet" href="{{ url_for(‘static‘,filename=‘css/login.css‘) }}">
{% block head %}{% endblock %}
</head>
<body>
<nav>
<img id="myOnOff" onclick="mySwitch()"
src="https://tva4.sinaimg.cn/crop.0.0.1242.1242.180/bde8475djw8f1hu7mrcy2j20yi0yiabl.jpg" width="40px">
<a href="http://127.0.0.1:5000/">首页</a>
<a href="http://127.0.0.1:5000/regist/">注册</a>
<a href="http://127.0.0.1:5000/login/">登录</a>
</nav>
{% block main %}{% endblock %}
</body>
</html>
2
{% extends ‘base父模板.html‘ %}
{% block title %}登录{% endblock %}
{% block head %}
<link href="../static/css/login.css" rel="stylesheet" type="text/css">
<script src="../static/js/login.js"></script>
{% endblock %}
{% block main %}
<div class="box">
<h2>登录</h2>
<div class="input_box">
<input type="text" id="uname" placeholder="请输入用户名">
</div>
<div class="input_box">
<input type="password" id="upass" placeholder="请输入密码">
</div>
<div id="error_box"><br></div>
<div class="input_box">
<button onclick="fnLogin()">登录</button>
</div>
</div>
{% endblock %}
原文：http://www.cnblogs.com/y550293904/p/7780364.html