https://gocn.io/
https://github.com/karan/Projects
https://github.com/astaxie/go-best-practice/blob/master/ebook/zh/preface.md
https://github.com/astaxie/build-web-application-with-golang/blob/master/en/preface.md
https://github.com/tomoya92/pybbs-go
https://github.com/astaxie/go-best-practice
http://plantuml.com
http://www.uml.org.cn/oobject/OObject.asp
https://github.com/astaxie
https://github.com/search?utf8=%E2%9C%93&q=beego&type=
http://blog.csdn.net/a19881029/article/details/8957441
https://www.cnblogs.com/shindo/p/5579191.html
https://www.processon.com
http://www.uml.org.cn/oobject/201609062.asp
https://baike.baidu.com/item/统一建模语言/3160571?fr=aladdin&fromid=446747&fromtitle=UML
http://www.uml.org.cn/oobject/201610282.asp
https://www.baidu.com/s?wd=uml&ie=utf-8&rsv_op=YVeaTMYZ1JIV9aJWZOQWL4JWROa1dQLSY5dVgMJ2WPgT75WWVK36ULh7daLQe4Z0Ndd32JZW0RPfWaW2XOM1eWVV089UP8MO&tn=06074089_5_pg&ch=&rsv_su=IaU5VhggIZYYLaQT9RZTNLQ7OaIV651fcTd513Ke0cRWKbQR6cTcaZTc1RSSKZ2JPaIaLc47bQI1MOLZYe6V3hN27e9PeRe2
https://baike.baidu.com/item/Tornado/13779735?fr=aladdin
https://www.zhihu.com/question/20136991
http://www.tornadoweb.org/en/stable/