加载静态文件,父模板的继承和扩展

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。

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 %}

base.css

img {
    width: 200px;
}
#container {
    background: cyan;

}

div.sa {
    border-style: solid;
    border-width: 5px;
    border-color: gold;
    width: 400px;
    float: left;
    margin: 5px;
}

div.sa img {
    width: 80%;
    heigh: aute;
}

div.st {
    text-align: center;
    padding: 2px;
}

div.sa:hover {
    border-style: solid;
    border-width: 5px;
    border-color: green;
}

base.js

function mySwitch() {
    var oBody = document.getElementById("mybody");
    var oOnoff = document.getElementById("myonoff");
    if (oOnoff.src.match("t01ebad6510c93738fc")) {
        oOnoff.src = "https://ps.ssl.qhimg.com/sdmt/119_135_100/t01ebad6510c93738fc.gif";
        oBody.style.background = "black";
        oBody.style.color = "yellow"
    } else {
        oOnoff.src = "https://ps.ssl.qhimg.com/sdmt/119_135_100/t01ebad6510c93738fc.gif";
        oBody.style.background = "white";
        oBody.style.color = "black"
    }
}

<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 %}

h2 {
    align: center;
}

.bigbox {
    display: -webkit-flex;
    display: flex;
    /*width: 300px;*/
    /*height: 250px;*/
    /*padding-left: 200px;*/
    /*padding-top: 100px;*/
    background-color: cyan;
}

#input_box {
    align: center;
    margin: 500px;
    padding-left: 500px;
}

#error_box {
    color: dodgerblue;
}

.bigbox {
    padding-right: 500px;
    margin-top: 100px;
    padding-left: 500px;
    font-size: 16px;
    padding-bottom: 40px;
    padding-top: 40px;
    font-family: verdana, Arial, Helvetica, sans-serif;
}

{% 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)

posted @ 2017-11-08 17:58 070王学竞阅读(105) 评论(0) 编辑收藏举报

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