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加载静态文件,父模板的继承和扩展

时间:2017-11-08 20:05:30      阅读:192      评论:0      收藏:0      [点我收藏+]

标签:分享   idt   点赞   def   定义   用户名   extend   ges   http   

  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base.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>{% block title %}{% endblock %}base</title>
    <link rel="stylesheet" type="text/css" href="../static/css/base.css">
    <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
     {% block head %}{% endblock %}
</head>
<body id="mybody">

<nav class="navbar navbar-inverse" role="navigation">
    <div class="container-fluid" id="container">
        <div class="navbar-header">
            <a class="navbar-brand" href="#">首页</a>
        </div>
        <div>
            <ul class="nav navbar-nav">
                <li><a href="{{ url_for("login") }}" onclick="">登录</a></li>
                <li><a href="{{ url_for("register") }}" onclick="">注册</a></li>
                <li class="dropdown">
                    <a href="#" class="dropdown-toggle" data-toggle="dropdown">
                        更多 <b class="caret"></b>
                    </a>
                    <ul class="dropdown-menu">
                        <li><a href="#">收藏</a></li>
                        <li><a href="#">分享</a></li>
                        <li><a href="#">搜索</a></li>
                        <li class="divider"></li>
                        <li><a href="#">点赞</a></li>
                    </ul>
                </li>

            </ul>
        </div>
        <div style="float: right">
            <img id="myonoff" onclick="mySwitch()" src="https://ps.ssl.qhimg.com/sdmt/119_135_100/t01ebad6510c93738fc.gif" style="width:50px" >
        </div>
        <div>
            <input type="text" name="user" id="user" placeholder="请输入搜索关键词">
            <input type="button" value="搜索" class="btn btn-success" onclick="">
        </div>
    </div>
</nav>
{% block main %}{% endblock %}

login.html

<head>
  <link href="../static/css/base.css" rel="stylesheet" type="text/css">

</head>{% extends "base.html" %}
{% block title %}
登陆
{% endblock %}

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

{% block main %}
<body>
<div class="bigbox">
      <div class="box">
          <h2 align="center">登录</h2>

       <div class="input_box" align="center">
           账户:<input id="umane"type="text"placeholder="请输入用户名">
       </div>
        <div class="input_box" align="center">
           密码:<input id="upass"type="password"placeholder="请输入密码">
       </div>
          <div id="error_box"><br></div>
          <div class="input_box" align="center">
              <button onclick="myLogin()">登录</button>
               <button onclick=window.alert("是否取消登录?")>取消</button></div>
          </div>
               </div>
<script>function myLogin() {
            var oUname = document.getElementById("umane");
            var oError = document.getElementById("error_box");
             var oUpass = document.getElementById("upass");
            oError.innerHTML = "<br>"
     //oUname
        if (oUname.value.length>12 || oUname.value.length<6){
            oError.innerHTML = "name:6-12";
            return;
         } else if((oUname.value.charCodeAt(0)>=48) && oUname.value.charCodeAt(0)<=57){

            oError.innerHTML = "首字母不能是数字";
            return;
        }else for(var i=0; i<oUname.value.length;i++)
        {

     if((oUname.value.charCodeAt(i)<48 || oUname.value.charCodeAt(i)>57)&&(oUname.value.charCodeAt(i)<97 || oUname.value.charCodeAt(i)>122 )){
                    oError.innerHTML = "只能包含字母和数字";
                    return;
                }
            }


            if(upass.value.length>12 || upass.value.length<6){
                oError.innerHTML="password;6-12";
                return;
            }
            window.alert("登陆成功 !")

        }
        </script>
</body>
{% endblock %}

register.html

{% extends ‘base.html‘ %}
{% block title %}
注册
{% endblock %}
{% block head %}
    <link href="../static/css/login.css" rel="stylesheet" type="text/css">
    <script src="{{ url_for(‘static‘,filename=‘js/base.js‘) }}"></script>
{% endblock %}

{% block main %}
    <script>function myLogin() {
            var oUname = document.getElementById("umane");
            var oError = document.getElementById("error_box");
             var oUpass = document.getElementById("upass");
            oError.innerHTML = "<br>"
     //oUname
        if (oUname.value.length>12 || oUname.value.length<6){
            oError.innerHTML = "name:6-12";
            return;
         } else if((oUname.value.charCodeAt(0)>=48) && oUname.value.charCodeAt(0)<=57){

            oError.innerHTML = "首字母不能是数字";
            return;
        }else for(var i=0; i<oUname.value.length;i++)
        {

     if((oUname.value.charCodeAt(i)<48 || oUname.value.charCodeAt(i)>57)&&(oUname.value.charCodeAt(i)<97 || oUname.value.charCodeAt(i)>122 )){
                    oError.innerHTML = "只能包含字母和数字";
                    return;
                }
            }


            if(upass.value.length>12 || upass.value.length<6){
                oError.innerHTML="password;6-12";
                return;
            }
            window.alert("登陆成功 !")

        }</script>

<body>
<div class="bigbox">
      <div class="box">
          <h2 align="center">注册</h2>

       <div class="input_box" align="center">
           输入账户:<input id="umane"type="text"placeholder="请输入用户名">
       </div>
        <div class="input_box" align="center">
           输入密码:<input id="upass"type="password"placeholder="请输入密码">
       </div>
          <div class="input_box"  align="center">
           再输密码:<input id="userpass1" type="password" placeholder="请再次输入密码">
    </div>
          <div id="error_box"><br></div>
          <div class="input_box" align="center">
              <button onclick="myLogin()">注册</button>

          </div>
               </div>

</body>
{% endblock %}
from flask import Flask
from flask import render_template

app = Flask(__name__)


@app.route(/)
def base():
    return render_template(base.html)
@app.route(/login/)
def login():
    return render_template(login.html)

@app.route(/register/)
def register():
    return render_template(register.html)


if __name__ == __main__:
    app.run(debug=True)

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加载静态文件,父模板的继承和扩展

标签:分享   idt   点赞   def   定义   用户名   extend   ges   http   

原文地址:http://www.cnblogs.com/kebibrany/p/7805388.html

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