发布时间： 2021-08-12 09:13:37
Django在模板引擎中提供了各种机制来帮助我们实现这一目标。在本教程中，我将说明如何使用Django内置模板标记块，扩展和包含来使模板易于维护。
准备工作：
1、Python 3.6
2、Django 2.2
3、AdminLTE 3.0.5
我们目标是将模板文件有效组织起来，避免重复的代码引用，我们分四个步骤来实现。
将模板分为多个部分，我们知道除了菜单和内容外，其他所有内容都是可重复的。我们将制作一个基本模板来容纳那些常见的部分，如图：
在项目文件夹中创建一个文件夹模板。在其中创建一个base.html。将所有常见的片段添加到其中。只需复制并粘贴以下内容，仅是load.html和index.html共享的一部分代码。
{% load static %} <!DOCTYPE html> <!-- This is a starter template page. Use this page to start your new project from scratch. This page gets rid of all links and provides the needed markup only. --> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta http-equiv="x-ua-compatible" content="ie=edge"> <title>AdminLTE 3 | Starter</title> <!-- Font Awesome Icons --> <link rel="stylesheet" href="{% static 'plugins/fontawesome-free/css/all.min.css' %}"> <!-- Theme style --> <link rel="stylesheet" href="{% static 'dist/css/adminlte.min.css' %}"> <!-- Google Font: Source Sans Pro --> <link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700" rel="stylesheet"> </head> <body class="hold-transition sidebar-mini"> <div class="wrapper"> <!-- Navbar --> <nav class="main-header navbar navbar-expand navbar-white navbar-light"> <!-- Left navbar links --> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" data-widget="pushmenu" href="#" role="button"><i class="fas fa-bars"></i></a> </li> <li class="nav-item d-none d-sm-inline-block"> <a href="index3.html" class="nav-link">Home</a> </li> <li class="nav-item d-none d-sm-inline-block"> <a href="#" class="nav-link">Contact</a> </li> </ul> <!-- SEARCH FORM --> <form class="form-inline ml-3"> <div class="input-group input-group-sm"> <input class="form-control form-control-navbar" type="search" placeholder="Search" aria-label="Search"> <div class="input-group-append"> <button class="btn btn-navbar" type="submit"> <i class="fas fa-search"></i> </button> </div> </div> </form> <!-- Right navbar links --> <ul class="navbar-nav ml-auto"> <!-- Messages Dropdown Menu --> <li class="nav-item dropdown"> <a class="nav-link" data-toggle="dropdown" href="#"> <i class="far fa-comments"></i> <span class="badge badge-danger navbar-badge">3</span> </a> <div class="dropdown-menu dropdown-menu-lg dropdown-menu-right"> <a href="#" class="dropdown-item"> <!-- Message Start --> <div class="media"> <img src="{% static 'dist/img/user1-128x128.jpg' %}" alt="User Avatar" class="img-size-50 mr-3 img-circle"> <div class="media-body"> <h3 class="dropdown-item-title"> Brad Diesel <span class="float-right text-sm text-danger"><i class="fas fa-star"></i></span> </h3> <p class="text-sm">Call me whenever you can...</p> <p class="text-sm text-muted"><i class="far fa-clock mr-1"></i> 4 Hours Ago</p> </div> </div> <!-- Message End --> </a> <div class="dropdown-divider"></div> <a href="#" class="dropdown-item"> <!-- Message Start --> <div class="media"> <img src="{% static 'dist/img/user8-128x128.jpg' %}" alt="User Avatar" class="img-size-50 img-circle mr-3"> <div class="media-body"> <h3 class="dropdown-item-title"> John Pierce <span class="float-right text-sm text-muted"><i class="fas fa-star"></i></span> </h3> <p class="text-sm">I got your message bro</p> <p class="text-sm text-muted"><i class="far fa-clock mr-1"></i> 4 Hours Ago</p> </div> </div> <!-- Message End --> </a> <div class="dropdown-divider"></div> <a href="#" class="dropdown-item"> <!-- Message Start --> <div class="media"> <img src="{% static 'dist/img/user3-128x128.jpg' %}" alt="User Avatar" class="img-size-50 img-circle mr-3"> <div class="media-body"> <h3 class="dropdown-item-title"> Nora Silvester <span class="float-right text-sm text-warning"><i class="fas fa-star"></i></span> </h3> <p class="text-sm">The subject goes here</p> <p class="text-sm text-muted"><i class="far fa-clock mr-1"></i> 4 Hours Ago</p> </div> </div> <!-- Message End --> </a> <div class="dropdown-divider"></div> <a href="#" class="dropdown-item dropdown-footer">See All Messages</a> </div> </li> <!-- Notifications Dropdown Menu --> <li class="nav-item dropdown"> <a class="nav-link" data-toggle="dropdown" href="#"> <i class="far fa-bell"></i> <span class="badge badge-warning navbar-badge">15</span> </a> <div class="dropdown-menu dropdown-menu-lg dropdown-menu-right"> <span class="dropdown-header">15 Notifications</span> <div class="dropdown-divider"></div> <a href="#" class="dropdown-item"> <i class="fas fa-envelope mr-2"></i> 4 new messages <span class="float-right text-muted text-sm">3 mins</span> </a> <div class="dropdown-divider"></div> <a href="#" class="dropdown-item"> <i class="fas fa-users mr-2"></i> 8 friend requests <span class="float-right text-muted text-sm">12 hours</span> </a> <div class="dropdown-divider"></div> <a href="#" class="dropdown-item"> <i class="fas fa-file mr-2"></i> 3 new reports <span class="float-right text-muted text-sm">2 days</span> </a> <div class="dropdown-divider"></div> <a href="#" class="dropdown-item dropdown-footer">See All Notifications</a> </div> </li> <li class="nav-item"> <a class="nav-link" data-widget="control-sidebar" data-slide="true" href="#" role="button"><i class="fas fa-th-large"></i></a> </li> </ul> </nav> <!-- /.navbar --> <!-- Main Sidebar Container --> <aside class="main-sidebar sidebar-dark-primary elevation-4"> <!-- Brand Logo --> <a href="{% url 'home:landing' %}" class="brand-link"> <img src="{% static 'dist/img/AdminLTELogo.png' %}" alt="AdminLTE Logo" class="brand-image img-circle elevation-3" style="opacity: .8"> <span class="brand-text font-weight-light">AdminLTE 3</span> </a> <!-- Sidebar --> <div class="sidebar"> <!-- Sidebar user panel (optional) --> <div class="user-panel mt-3 pb-3 mb-3 d-flex"> <div class="image"> <img src="{% static 'dist/img/user2-160x160.jpg' %}" class="img-circle elevation-2" alt="User Image"> </div> <div class="info"> <a href="#" class="d-block">Alexander Pierce</a> </div> </div> <!-- Sidebar Menu --> {% block sidebar %}{% endblock %} <!-- /.sidebar-menu --> </div> <!-- /.sidebar --> </aside> <!-- Content Wrapper. Contains page content --> {% block content_wrapper %}{% endblock %} <!-- /.content-wrapper --> <!-- Control Sidebar --> <aside class="control-sidebar control-sidebar-dark"> <!-- Control sidebar content goes here --> <div class="p-3"> <h5>Title</h5> <p>Sidebar content</p> </div> </aside> <!-- /.control-sidebar --> <!-- Main Footer --> <footer class="main-footer"> <!-- To the right --> <div class="float-right d-none d-sm-inline"> Anything you want </div> <!-- Default to the left --> <strong>Copyright © 2014-2019 <a href="https://adminlte.io">AdminLTE.io</a>.</strong> All rights reserved. </footer> </div> <!-- ./wrapper --> <!-- REQUIRED SCRIPTS --> <!-- jQuery --> <script src="{% static 'plugins/jquery/jquery.min.js' %}"></script> <!-- Bootstrap 4 --> <script src="{% static 'plugins/bootstrap/js/bootstrap.bundle.min.js' %}"></script> <!-- AdminLTE App --> <script src="{% static 'dist/js/adminlte.min.js' %}"></script> </body> </html>
请注意，块content_wrapper用于呈现每个页面的自定义内容。
由于我们在上一步中创建了base.html，因此不再需要将通用代码保留在Landing.html和home.html中。我们应该得到如下结果。
<div class="content-wrapper"> <!-- Content Header (Page header) --> <div class="content-header"> <div class="container-fluid"> <div class="row mb-2"> <div class="col-sm-6"> <h1 class="m-0 text-dark">Polls Index Page</h1> </div><!-- /.col --> <div class="col-sm-6"> <ol class="breadcrumb float-sm-right"> <li class="breadcrumb-item"><a href="#">Home</a></li> <li class="breadcrumb-item active">Polls</li> </ol> </div><!-- /.col --> </div><!-- /.row --> </div><!-- /.container-fluid --> </div> <!-- /.content-header --> <!-- Main content --> <div class="content"> <div class="container-fluid"> <div class="row"> <div class="col-lg-6"> <div class="card"> <div class="card-body"> <h5 class="card-title">Card title</h5> <p class="card-text"> Some quick example text to build on the card title and make up the bulk of the card's content. </p> <a href="#" class="card-link">Card link</a> <a href="#" class="card-link">Another link</a> </div> </div> <div class="card card-primary card-outline"> <div class="card-body"> <h5 class="card-title">Card title</h5> <p class="card-text"> Some quick example text to build on the card title and make up the bulk of the card's content. </p> <a href="#" class="card-link">Card link</a> <a href="#" class="card-link">Another link</a> </div> </div><!-- /.card --> <!-- general form elements disabled --> <div class="card card-primary card-outline"> <div class="card-header"> <h3 class="card-title">General Elements</h3> </div> <!-- /.card-header --> <div class="card-body"> <form role="form"> <div class="row"> <div class="col-sm-6"> <!-- text input --> <div class="form-group"> <label>Text</label> <input type="text" class="form-control" placeholder="Enter ..."> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Text Disabled</label> <input type="text" class="form-control" placeholder="Enter ..." disabled> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- textarea --> <div class="form-group"> <label>Textarea</label> <textarea class="form-control" rows="3" placeholder="Enter ..."></textarea> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Textarea Disabled</label> <textarea class="form-control" rows="3" placeholder="Enter ..." disabled></textarea> </div> </div> </div> <!-- input states --> <div class="form-group"> <label class="col-form-label" for="inputSuccess"><i class="fas fa-check"></i> Input with success</label> <input type="text" class="form-control is-valid" id="inputSuccess" placeholder="Enter ..."> </div> <div class="form-group"> <label class="col-form-label" for="inputWarning"><i class="far fa-bell"></i> Input with warning</label> <input type="text" class="form-control is-warning" id="inputWarning" placeholder="Enter ..."> </div> <div class="form-group"> <label class="col-form-label" for="inputError"><i class="far fa-times-circle"></i> Input with error</label> <input type="text" class="form-control is-invalid" id="inputError" placeholder="Enter ..."> </div> <div class="row"> <div class="col-sm-6"> <!-- checkbox --> <div class="form-group"> <div class="form-check"> <input class="form-check-input" type="checkbox"> <label class="form-check-label">Checkbox</label> </div> <div class="form-check"> <input class="form-check-input" type="checkbox" checked> <label class="form-check-label">Checkbox checked</label> </div> <div class="form-check"> <input class="form-check-input" type="checkbox" disabled> <label class="form-check-label">Checkbox disabled</label> </div> </div> </div> <div class="col-sm-6"> <!-- radio --> <div class="form-group"> <div class="form-check"> <input class="form-check-input" type="radio" name="radio1"> <label class="form-check-label">Radio</label> </div> <div class="form-check"> <input class="form-check-input" type="radio" name="radio1" checked> <label class="form-check-label">Radio checked</label> </div> <div class="form-check"> <input class="form-check-input" type="radio" disabled> <label class="form-check-label">Radio disabled</label> </div> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- select --> <div class="form-group"> <label>Select</label> <select class="form-control"> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Select Disabled</label> <select class="form-control" disabled> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- Select multiple--> <div class="form-group"> <label>Select Multiple</label> <select multiple class="form-control"> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Select Multiple Disabled</label> <select multiple class="form-control" disabled> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> </div> </form> </div> <!-- /.card-body --> </div> <!-- /.card --> </div> <!-- /.col-md-6 --> <div class="col-lg-6"> <div class="card"> <div class="card-header"> <h5 class="m-0">Featured</h5> </div> <div class="card-body"> <h6 class="card-title">Special title treatment</h6> <p class="card-text">With supporting text below as a natural lead-in to additional content.</p> <a href="#" class="btn btn-primary">Go somewhere</a> </div> </div> <div class="card card-primary card-outline"> <div class="card-header"> <h5 class="m-0">Featured</h5> </div> <div class="card-body"> <h6 class="card-title">Special title treatment</h6> <p class="card-text">With supporting text below as a natural lead-in to additional content.</p> <a href="#" class="btn btn-primary">Go somewhere</a> </div> </div> </div> <!-- /.col-md-6 --> </div> <!-- /.row --> </div><!-- /.container-fluid --> </div> <!-- /.content --> </div> landing.html页面代码： <div class="content-wrapper"> <!-- Content Header (Page header) --> <div class="content-header"> <div class="container-fluid"> <div class="row mb-2"> <div class="col-sm-6"> <h1 class="m-0 text-dark">Home Landing Page</h1> </div><!-- /.col --> <div class="col-sm-6"> <ol class="breadcrumb float-sm-right"> <li class="breadcrumb-item"><a href="#">Landing Page</a></li> </ol> </div><!-- /.col --> </div><!-- /.row --> </div><!-- /.container-fluid --> </div> <!-- /.content-header --> <!-- Main content --> <div class="content"> <div class="container-fluid"> <div class="row"> <div class="col-lg-6"> <div class="card"> <div class="card-body"> <h5 class="card-title">Card title</h5> <p class="card-text"> Some quick example text to build on the card title and make up the bulk of the card's content. </p> <a href="#" class="card-link">Card link</a> <a href="#" class="card-link">Another link</a> </div> </div> <div class="card card-primary card-outline"> <div class="card-body"> <h5 class="card-title">Card title</h5> <p class="card-text"> Some quick example text to build on the card title and make up the bulk of the card's content. </p> <a href="#" class="card-link">Card link</a> <a href="#" class="card-link">Another link</a> </div> </div><!-- /.card --> </div> <div class="col-md-6"> <!-- general form elements disabled --> <div class="card card-warning"> <div class="card-header"> <h3 class="card-title">General Elements</h3> </div> <!-- /.card-header --> <div class="card-body"> <form role="form"> <div class="row"> <div class="col-sm-6"> <!-- text input --> <div class="form-group"> <label>Text</label> <input type="text" class="form-control" placeholder="Enter ..."> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Text Disabled</label> <input type="text" class="form-control" placeholder="Enter ..." disabled> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- textarea --> <div class="form-group"> <label>Textarea</label> <textarea class="form-control" rows="3" placeholder="Enter ..."></textarea> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Textarea Disabled</label> <textarea class="form-control" rows="3" placeholder="Enter ..." disabled></textarea> </div> </div> </div> <!-- input states --> <div class="form-group"> <label class="col-form-label" for="inputSuccess"><i class="fas fa-check"></i> Input with success</label> <input type="text" class="form-control is-valid" id="inputSuccess" placeholder="Enter ..."> </div> <div class="form-group"> <label class="col-form-label" for="inputWarning"><i class="far fa-bell"></i> Input with warning</label> <input type="text" class="form-control is-warning" id="inputWarning" placeholder="Enter ..."> </div> <div class="form-group"> <label class="col-form-label" for="inputError"><i class="far fa-times-circle"></i> Input with error</label> <input type="text" class="form-control is-invalid" id="inputError" placeholder="Enter ..."> </div> <div class="row"> <div class="col-sm-6"> <!-- checkbox --> <div class="form-group"> <div class="form-check"> <input class="form-check-input" type="checkbox"> <label class="form-check-label">Checkbox</label> </div> <div class="form-check"> <input class="form-check-input" type="checkbox" checked> <label class="form-check-label">Checkbox checked</label> </div> <div class="form-check"> <input class="form-check-input" type="checkbox" disabled> <label class="form-check-label">Checkbox disabled</label> </div> </div> </div> <div class="col-sm-6"> <!-- radio --> <div class="form-group"> <div class="form-check"> <input class="form-check-input" type="radio" name="radio1"> <label class="form-check-label">Radio</label> </div> <div class="form-check"> <input class="form-check-input" type="radio" name="radio1" checked> <label class="form-check-label">Radio checked</label> </div> <div class="form-check"> <input class="form-check-input" type="radio" disabled> <label class="form-check-label">Radio disabled</label> </div> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- select --> <div class="form-group"> <label>Select</label> <select class="form-control"> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Select Disabled</label> <select class="form-control" disabled> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- Select multiple--> <div class="form-group"> <label>Select Multiple</label> <select multiple class="form-control"> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Select Multiple Disabled</label> <select multiple class="form-control" disabled> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> </div> </form> </div> <!-- /.card-body --> </div> <!-- /.card --> </div> </div> </div><!-- /.container-fluid --> </div> <!-- /.content --> </div>
为了将base.html用作每个页面的基础模板，我们需要通过在模板的开头使用{％extended‘base.html’％}来声明base.html为“父”模板。最重要的是，不要忘记content_wrapper块。将全部内容包装到该块中。我们应该得到如下结果。
landing.html: {% extends 'base.html' %} {% load static %} {% block content_wrapper %} <div class="content-wrapper"> . . . </div> {% endblock %} 在index.html: {% extends 'base.html' %} {% load static %} {% block content_wrapper %} <div class="content-wrapper"> . . . </div> {% endblock %}
现在我们可能会意识到，两个模板中都存在相同的巨型形式。几乎一半的代码是它。由于此表单已在两个模板中重复使用，因此我们将其维护在一个可以包含任何模板的地方。
在模板文件夹中创建一个文件夹advanced_forms。在advanced_forms文件夹中，创建如下的general_elements_form.html，代码如下：
<form role="form"> <div class="row"> <div class="col-sm-6"> <!-- text input --> <div class="form-group"> <label>Text</label> <input type="text" class="form-control" placeholder="Enter ..."> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Text Disabled</label> <input type="text" class="form-control" placeholder="Enter ..." disabled> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- textarea --> <div class="form-group"> <label>Textarea</label> <textarea class="form-control" rows="3" placeholder="Enter ..."></textarea> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Textarea Disabled</label> <textarea class="form-control" rows="3" placeholder="Enter ..." disabled></textarea> </div> </div> </div> <!-- input states --> <div class="form-group"> <label class="col-form-label" for="inputSuccess"><i class="fas fa-check"></i> Input with success</label> <input type="text" class="form-control is-valid" id="inputSuccess" placeholder="Enter ..."> </div> <div class="form-group"> <label class="col-form-label" for="inputWarning"><i class="far fa-bell"></i> Input with warning</label> <input type="text" class="form-control is-warning" id="inputWarning" placeholder="Enter ..."> </div> <div class="form-group"> <label class="col-form-label" for="inputError"><i class="far fa-times-circle"></i> Input with error</label> <input type="text" class="form-control is-invalid" id="inputError" placeholder="Enter ..."> </div> <div class="row"> <div class="col-sm-6"> <!-- checkbox --> <div class="form-group"> <div class="form-check"> <input class="form-check-input" type="checkbox"> <label class="form-check-label">Checkbox</label> </div> <div class="form-check"> <input class="form-check-input" type="checkbox" checked> <label class="form-check-label">Checkbox checked</label> </div> <div class="form-check"> <input class="form-check-input" type="checkbox" disabled> <label class="form-check-label">Checkbox disabled</label> </div> </div> </div> <div class="col-sm-6"> <!-- radio --> <div class="form-group"> <div class="form-check"> <input class="form-check-input" type="radio" name="radio1"> <label class="form-check-label">Radio</label> </div> <div class="form-check"> <input class="form-check-input" type="radio" name="radio1" checked> <label class="form-check-label">Radio checked</label> </div> <div class="form-check"> <input class="form-check-input" type="radio" disabled> <label class="form-check-label">Radio disabled</label> </div> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- select --> <div class="form-group"> <label>Select</label> <select class="form-control"> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Select Disabled</label> <select class="form-control" disabled> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> </div> <div class="row"> <div class="col-sm-6"> <!-- Select multiple--> <div class="form-group"> <label>Select Multiple</label> <select multiple class="form-control"> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> <div class="col-sm-6"> <div class="form-group"> <label>Select Multiple Disabled</label> <select multiple class="form-control" disabled> <option>option 1</option> <option>option 2</option> <option>option 3</option> <option>option 4</option> <option>option 5</option> </select> </div> </div> </div> </form>
删除Landing.html和index.html中的多余表单代码。使用{％ include ‘advanced_forms/general_elements_form.html’ ％}包含表单。设置好之后，这就是最终结果。
index.html: {% extends 'base.html' %} {% load static %} {% block content_wrapper %} <div class="content-wrapper"> <!-- Content Header (Page header) --> <div class="content-header"> <div class="container-fluid"> <div class="row mb-2"> <div class="col-sm-6"> <h1 class="m-0 text-dark">Polls Index Page</h1> </div><!-- /.col --> <div class="col-sm-6"> <ol class="breadcrumb float-sm-right"> <li class="breadcrumb-item"><a href="#">Home</a></li> <li class="breadcrumb-item active">Polls</li> </ol> </div><!-- /.col --> </div><!-- /.row --> </div><!-- /.container-fluid --> </div> <!-- /.content-header --> <!-- Main content --> <div class="content"> <div class="container-fluid"> <div class="row"> <div class="col-lg-6"> <div class="card"> <div class="card-body"> <h5 class="card-title">Card title</h5> <p class="card-text"> Some quick example text to build on the card title and make up the bulk of the card's content. </p> <a href="#" class="card-link">Card link</a> <a href="#" class="card-link">Another link</a> </div> </div> <div class="card card-primary card-outline"> <div class="card-body"> <h5 class="card-title">Card title</h5> <p class="card-text"> Some quick example text to build on the card title and make up the bulk of the card's content. </p> <a href="#" class="card-link">Card link</a> <a href="#" class="card-link">Another link</a> </div> </div><!-- /.card --> <!-- general form elements disabled --> <div class="card card-primary card-outline"> <div class="card-header"> <h3 class="card-title">General Elements</h3> </div> <!-- /.card-header --> <div class="card-body"> {% include 'advanced_forms/general_elements_form.html' %} </div> <!-- /.card-body --> </div> <!-- /.card --> </div> <!-- /.col-md-6 --> <div class="col-lg-6"> <div class="card"> <div class="card-header"> <h5 class="m-0">Featured</h5> </div> <div class="card-body"> <h6 class="card-title">Special title treatment</h6> <p class="card-text">With supporting text below as a natural lead-in to additional content.</p> <a href="#" class="btn btn-primary">Go somewhere</a> </div> </div> <div class="card card-primary card-outline"> <div class="card-header"> <h5 class="m-0">Featured</h5> </div> <div class="card-body"> <h6 class="card-title">Special title treatment</h6> <p class="card-text">With supporting text below as a natural lead-in to additional content.</p> <a href="#" class="btn btn-primary">Go somewhere</a> </div> </div> </div> <!-- /.col-md-6 --> </div> <!-- /.row --> </div><!-- /.container-fluid --> </div> <!-- /.content --> </div> {% endblock %} loading.html: {% extends 'base.html' %} {% load static %} {% block content_wrapper %} <div class="content-wrapper"> <!-- Content Header (Page header) --> <div class="content-header"> <div class="container-fluid"> <div class="row mb-2"> <div class="col-sm-6"> <h1 class="m-0 text-dark">Home Landing Page</h1> </div><!-- /.col --> <div class="col-sm-6"> <ol class="breadcrumb float-sm-right"> <li class="breadcrumb-item"><a href="#">Landing Page</a></li> </ol> </div><!-- /.col --> </div><!-- /.row --> </div><!-- /.container-fluid --> </div> <!-- /.content-header --> <!-- Main content --> <div class="content"> <div class="container-fluid"> <div class="row"> <div class="col-lg-6"> <div class="card"> <div class="card-body"> <h5 class="card-title">Card title</h5> <p class="card-text"> Some quick example text to build on the card title and make up the bulk of the card's content. </p> <a href="#" class="card-link">Card link</a> <a href="#" class="card-link">Another link</a> </div> </div> <div class="card card-primary card-outline"> <div class="card-body"> <h5 class="card-title">Card title</h5> <p class="card-text"> Some quick example text to build on the card title and make up the bulk of the card's content. </p> <a href="#" class="card-link">Card link</a> <a href="#" class="card-link">Another link</a> </div> </div><!-- /.card --> </div> <div class="col-md-6"> <!-- general form elements disabled --> <div class="card card-warning"> <div class="card-header"> <h3 class="card-title">General Elements</h3> </div> <!-- /.card-header --> <div class="card-body"> {% include 'advanced_forms/general_elements_form.html' %} </div> <!-- /.card-body --> </div> <!-- /.card --> </div> </div> </div><!-- /.container-fluid --> </div> <!-- /.content --> </div> {% endblock %}
现在，让我们再次重新启动项目。屏幕上没有任何变化。但是从整体结构上，项目变得更易于维护。
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