Master Markdown: A Complete Guide to Headings, Lists, Tables, and Code Blocks

1. Headings

Markdown supports up to six heading levels using the

#

symbol; the number of

#

characters determines the level, and a space must follow the symbols.

<code># Heading 1
## Heading 2
### Heading 3
#### Heading 4
##### Heading 5
###### Heading 6</code>

Demonstration

Heading 1

Heading 2

Heading 3

Heading 4

Heading 5

Heading 6

2. Alternative Setext Headings

Only level‑1 and level‑2 headings can be expressed with the Setext style; the number of

=

or

-

characters is unrestricted as long as it exceeds one.

<code>Heading 1
=======
Heading 2
------</code>

Demonstration

3. Text Styling

Use asterisks or underscores for emphasis:

<code>**Bold**
*Italic* or _Italic_
***Bold Italic***
~~Strikethrough~~</code>

Demonstration

Bold

Italic

Bold Italic

Strikethrough

4. Lists

Unordered Lists

Three syntaxes are supported using

*

,

+

, or

-

:

<code>* Unordered item 1
* Unordered item 2
* Unordered item 3

+ Unordered item 4
+ Unordered item 5
+ Unordered item 6

- Unordered item 7
- Unordered item 8
- Unordered item 9</code>

Demonstration

Unordered item 1

Unordered item 2

Unordered item 3

Unordered item 4

Unordered item 5

Unordered item 6

Unordered item 7

Unordered item 8

Unordered item 9

Ordered Lists

Ordered lists are created by prefixing items with numbers:

<code>1. Ordered item 1
2. Ordered item 2
3. Ordered item 3</code>

Demonstration

Ordered item 1

Ordered item 2

Ordered item 3

5. Blockquotes

Prefix a line with

>

to create a blockquote.

<code>&gt; Serve the people
&gt;          — Chairman Mao</code>

Demonstration

Serve the people — Chairman Mao

6. Code Blocks

Short or single‑line code can be wrapped with backticks; multi‑line code should be fenced with three backticks. Escape characters with a backslash when needed.

<code>`Short or single‑line code`
`\``
Multi‑line code {
    print ‘Life is short, I use Python’
}
`\``</code>

Demonstration

Short or single‑line code

<code>Multi‑line code {
    print ‘Life is short, I use Python’
}</code>

7. Tables

Tables are created using pipes

|

to separate cells and hyphens

-

for the header separator. Alignment is set with colons:

<code>|name|age|sex|
|:-----|:--:|----:|
|wanger|23|nan|
|lisi|20|nv|
|wangwu|22|nan|</code>

Demonstration

name

age

sex

wanger

23

nan

lisi

20

nv

wangwu

22

nan

8. Horizontal Rules

Insert three or more asterisks, hyphens, or underscores on a line by themselves, preceded by a blank line.

<code>---
___
***</code>

Demonstration

9. Links and Images

Links and images share similar syntax; images start with an exclamation mark. The title attribute is optional and appears on hover.

Image syntax:

![alt text](image_url "title")

Link syntax:

[link text](url "title")

<code>![WeChat QR](/uploads/wechat-qcode.jpg "WeChat QR")
[Personal Blog](https://wahaha5354.github.io "Personal Blog")</code>

Demonstration