---
layout: post
title: Test
mathjax: true
---

## 测试1
测试1


## 测试2
测试2

## Test
测试

---

#### Syntax hightlight

```python
# python
def f(g, x):
    return g(x)
```

~~~python
# python
def f():
    print "hellooooooooooooooooooooooo oooooooo ooooooooooooooooo ooooooooooooooooo ooooooo ooooooo"
~~~

{% highlight python linenos %}
# python
def f():
    print "hellooooooooooooooooooooooo oooooooo ooooooooooooooooo ooooooooooooooooo ooooooo ooooooo"
{% endhighlight %}

```scala
def f[a](x: a) = x
```

```hs
-- haskell
f :: a -> a
f x = if True then x+1 else x-1
```

~~~ ruby
# ruby
def what?
  42
end
~~~

```
hello
world
```

code: `print("Hello")` end.

---

#### mathjax

$( h_t )$, $\lambda x$, $x>y$, $\sum_{i=0}^\infty i^2$


When $a \ne 0$, there are two solutions to \\(ax^2 + bx + c = 0\\) and they are

$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$

---

#### 测试
第七支，世难容　　气质美如兰，才华阜比仙。天生成孤癖人皆罕。你道是啖肉食腥膻？视绮罗俗厌。却不知太高人愈妒，过洁世间嫌。可叹这，青灯古殿人将老；辜负了，红粉朱楼春色阑。到头来，依旧是风尘骯髒违心愿。**<sup>按：骯，口朗切，仄声，音慷。骯髒，义即不屈</sup>**好一似，无瑕美玉遭泥陷；又何须，王孙公子叹无缘？

---

#### footnote

- Haskell[^1]

---

#### add css class

{: .my-class}
hello

---




[^1]:
    A functional programming language.