测试1

测试2

测试

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

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

{% highlight python linenos %}

def f(): print "hellooooooooooooooooooooooo oooooooo ooooooooooooooooo ooooooooooooooooo ooooooo ooooooo" {% endhighlight %}

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

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

# ruby
def what?
  42
end

hello
world

code: print("Hello") end.

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

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

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

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。**^{按：骯，口朗切，仄声，音慷。骯髒，义即不屈}**好一似，无瑕美玉遭泥陷；又何须，王孙公子叹无缘？

• Haskell¹

{: .my-class} hello