10.2. Markdown title

发布时间 :2025-10-25 12:23:40 UTC      

Markdown headings are available in two formats.

10.2.1. 1. Use = and-to mark the first and second headings

= and-tag syntax format is as follows:

我展示的是一级标题
=================

我展示的是二级标题
-----------------

The display effect is as follows:

image0

10.2.2. Use the # sign

The # sign can be used to indicate the level 1-6 title, the first level title corresponds to a # sign, the second level title corresponds to two # numbers, and so on.

# 一级标题
## 二级标题
### 三级标题
#### 四级标题
##### 五级标题
###### 六级标题

The display effect is as follows:

image1

Principles, Technologies, and Methods of Geographic Information Systems  102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.