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i don't konw what i should write here.
learn the syntax of mardown.
# header
emphasis *asd* **asd** _asd_ __asd__ ~~asd~~ 
list
1. asd
2. asd
3. - asd
   - asd
* asd
* asd
![]()
[google](google.com)
>你若安好，
>便是晴天
...python
import numpy as np

print 'hello world'
...
- [x] ok
- [] not ok
head1 | head2
------|------
row1 | row1
http://www.baidu.com
:camel: :cat: :up: :down: