---
title: Markdown
tags:
- markdown
---
## Heading 2
### Heading 3
#### Heading 4
##### Heading 5
###### Heading 6
Bold: **Bold text**
Italic: _Italic text_
~~Deleted text~~
Content ==Highlight==
Mathematical expression: $-(2^{n-1})$ ~ $2^{n-1} -1$
$\frac {\partial^r} {\partial \omega^r} \left(\frac {y^{\omega}} {\omega}\right)
= \left(\frac {y^{\omega}} {\omega}\right) \left\{(\log y)^r + \sum_{i=1}^r \frac {(-1)^ Ir \cdots (r-i+1) (\log y)^{ri}} {\omega^i} \right\}$
19^th^
H~2~O
::: center
content center
:::
::: right
content right
:::
- Unordered List 1
- Unordered List 2
- Unordered List 3
1. Ordered List 1
2. Ordered List 2
3. Ordered List 3
- [ ] Task List 1
- [ ] Task List 2
- [x] Task List 3
- [x] Task List 4
| Tables | Are | Cool |
| ------------- |:-------------:| -----:|
| col 3 is | right-aligned | $1600 |
| col 2 is | centered | $12 |
| zebra stripes | are neat | $1 |
> quote content
>
> quote content
[links](/)
[outside links](https://github.com/pengzhanbo)
**Badge：**
-
-
-
-
**icons：**
- home -
- vscode -
- twitter -
**demo wrapper：**
::: demo-wrapper title="Demo" no-padding height="200px"
:::
**code block：**
```js whitespace
const a = 1
const b = 2
const c = a + b
// [!code word:obj]
const obj = {
toLong: {
deep: {
deep: {
deep: {
value: 'this is to long text. this is to long text. this is to long text. this is to long text.', // [!code highlight]
}
}
}
}
}
```
**code groups：**
::: code-tabs
@tab tab1
```js
const a = 1
const b = 2
const c = a + b
```
@tab tab2
```ts
const a: number = 1
const b: number = 2
const c: number = a + b
```
:::
**code highlight：**
```ts
function foo() {
const a = 1 // [!code highlight]
console.log(a)
const b = 2 // [!code ++]
const c = 3 // [!code --]
console.log(a + b + c) // [!code error]
console.log(a + b) // [!code warning]
}
```
**code focus：**
```ts
function foo() {
const a = 1 // [!code focus]
}
```
::: note
note content [link](https://github.com/pengzhanbo) `inline code`
```js
const a = 1
const b = 2
const c = a + b
```
:::
::: info
content [link](https://github.com/pengzhanbo) `inline code`
```js
const a = 1
const b = 2
const c = a + b
```
:::
::: tip
content [link](https://github.com/pengzhanbo) `inline code`
```js
const a = 1
const b = 2
const c = a + b
```
:::
::: warning
content [link](https://github.com/pengzhanbo) `inline code`
```js
const a = 1
const b = 2
const c = a + b
```
:::
::: caution
content [link](https://github.com/pengzhanbo) `inline code`
```js
const a = 1
const b = 2
const c = a + b
```
:::
::: important
content [link](https://github.com/pengzhanbo) `inline code`
```js
const a = 1
const b = 2
const c = a + b
```
:::
**GFM alert：**
> [!note]
> note
> [!info]
> info
> [!tip]
> tip
> [!warning]
> warning
> [!caution]
> caution
> [!important]
> important
**code demo:**
::: normal-demo Demo 演示
```html
Hello Word!
VeryPowerful!
```
```js
document.querySelector('#very').addEventListener('click', () => {
alert('Very Powerful')
})
```
```css
span {
color: red;
}
```
:::
**tab card：**
::: tabs
@tab title 1
content block
@tab title 2
content block
:::
:::: warning
::: tabs
@tab title 1
content block
@tab title 2
content block
:::
::::
**footnote：**
footnote 1 link[^first]。
footnote 2 link[^second]。
inline footnote ^[^first] definition。
Repeated footnote definition[^second]。
[^first]: footnote **you can contain special mark**
also can contain paragraph
[^second]: footnote content.