This is a test doc

图片

多语言

[汉语]联合国(汉语)
[English]United Nations (UN)(英语)
[Français]Organisation des Nations Unies (ONU/ Nations Unies)(法语)
[Русский]Организация Объединенных Наций (ООН)(俄语)
[Español]Organización de las Naciones Unidas (ONU / Naciones Unidas)(西班牙语)
[الأمم المتحدة[العربية(阿拉伯语)

code

Python

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import os
print('hello world')
a = 1+2
l = [1,2,3]
class A(object):
def __init__(self, b):
self.b = b

@staticmethod
def f():
pass

@classmethod
def g(cls):
while True:
break

SQL

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SELECT user_id, COUNT(1) AS cnt
FROM TABLE_A
WHERE ds="${bizdate}"
GROUP BY user_id;

表格

UID NICK
acef Jhon
xdaf MIke

公式

$$ y = \frac{\lim_{x \to \infty} \widetilde{\frac{1}{x}} }{\sum_{i=0}^{N} a_{i}} $$

inline 公式 $ \sigma (x\mathcal{\sigma (p)}) $