最近几年来，地理信息系统无论是在理论上还是应用上都处在一个飞速发展的阶段。 GIS被应用于多个领域的建模和决策支持，如城市管理、区划、环境整治等等，地理信息成为信息时代重要的组成部分之一； “数字地球”概念的提出，更进一步推动了作为其技术支撑的GIS的发展。 与此同时，一些学者致力于相关的理论研究，如空间感知、空间数据误差、空间关系的形式化等等。 这恰好说明了地理信息系统作为应用技术和学科的两个方面，并且这两个方面构成了相互促进的发展过程。
In the process of web page development, if you encounter too much content, you will generally do paging.
Bootstrap 5 can easily achieve the paging effect.
To create a basic paging, you can use the The current page can use the Paging entries can be set to different sizes. You can use tool classes to set the alignment of paging: add on the element
.pagination class. And then in add on the element .page-item class of the < li > element add to the label `` .page-link``class: 7.16.1. Example ¶
<ul class="pagination">
<li class="page-item"><a class="page-link" href="#">Previousa>li>
<li class="page-item"><a class="page-link" href="#">1a>li>
<li class="page-item"><a class="page-link" href="#">2a>li>
<li class="page-item"><a class="page-link" href="#">3a>li>
<li class="page-item"><a class="page-link" href="#">Nexta>li>
ul>
Current page number status ¶
.active class to highlight: 7.16.2. Example ¶
<ul class="pagination">
<li class="page-item"><a class="page-link" href="#">Previousa>li>
<li class="page-item"><a class="page-link" href="#">1a>li>
<li class="page-item active"><a class="page-link" href="#">2a>li>
<li class="page-item"><a class="page-link" href="#">3a>li>
<li class="page-item"><a class="page-link" href="#">Nexta>li>
ul>
Unclickable paging links ¶
.disabled class can make the paging link unclickable: 7.16.3. Example ¶
<ul class="pagination">
<li class="page-item disabled"><a class="page-link" href="#">Previousa>li>
<li class="page-item"><a class="page-link" href="#">1a>li>
<li class="page-item"><a class="page-link" href="#">2a>li>
<li class="page-item"><a class="page-link" href="#">3a>li>
<li class="page-item"><a class="page-link" href="#">Nexta>li>
ul>
Paging display size ¶
.pagination-lg class sets paging entries for large fonts, and .pagination- sm class sets paging entries for small fonts: 7.16.4. Example ¶
<ul class="pagination pagination-lg">
<li class="page-item"><a class="page-link" href="#">Previousa>li>
<li class="page-item"><a class="page-link" href="#">1a>li>
<li class="page-item"><a class="page-link" href="#">2a>li>
<li class="page-item"><a class="page-link" href="#">3a>li>
<li class="page-item"><a class="page-link" href="#">Nexta>li>
ul>
<ul class="pagination pagination-sm">
<li class="page-item"><a class="page-link" href="#">Previousa>li>
<li class="page-item"><a class="page-link" href="#">1a>li>
<li class="page-item"><a class="page-link" href="#">2a>li>
<li class="page-item"><a class="page-link" href="#">3a>li>
<li class="page-item"><a class="page-link" href="#">Nexta>li>
ul>
Alignment of pagination ¶
7.16.5. Example ¶
Bread crumb navigation ¶
.breadcrumb and .breadcrumb-item class is used to set bread crumb navigation: 7.16.6. Example ¶
<ul class="breadcrumb">
<li class="breadcrumb-item"><a href="#">Photosa>li>
<li class="breadcrumb-item"><a href="#">Summer 2017a>li>
<li class="breadcrumb-item"><a href="#">Italya>li>
<li class="breadcrumb-item active">Romeli>
ul>