> For the complete documentation index, see [llms.txt](https://zhip21.gitbook.io/cooc-howto-book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zhip21.gitbook.io/cooc-howto-book/english-version/chapter-3-basic-markdown-rules.md).

# Chapter 3: Basic markdown rules

### Basic symbol

* \*,-,+ they have the same function,and be named the Markdown symbol.
* The blank line indicates another paragraph

### Change the line

* Single paragraph (& lt; & gt;) with a blank line
* Two consecutive spaces will become one \<br\&gt(Line breaks);
* 3 consecutive symbols, followed by a blank line, indicating the hr horizontal line (a horizontal line)

### Title

* proceed h1--h6,you can add 1--6 #,for example,# First-level title,## Second-level title...
* Bold text is through the text around the two \*\*

### Quotes

* Add ">" and a space on the first line to indicate the code reference, and can also be nested

### List

* using \*,+,- and add a space to show a
* Can support nesting
* The ordered list is represented by the number + the English dot + space

### Hyperlink

* Write directly \[text]\(your hyperlink address)
* Shorthand url：Wrapped with angle brackets url.This is the url anchor text is the url itself

### Insert pictures

* Single line: !\[alt\_text]\(url "title")
* Reference representation: !\[alt\_text]\(id),preordered \[id]:url "title"
* use directly<>label,this allows you to specify the size of the image

### Special symbol

* Use '' to escape the markdown symbol in the text
* You can use the html tag directly in the text, but pay attention to the use of time, before and after the blank line
* A symbol is added before and after the text, indicating italic