backup

iaas,paas,saas:

http://www.ruanyifeng.com/blog/2017/07/iaas-paas-saas.html

depend_lib_order:

https://blog.csdn.net/rryqszq4/article/details/51142468

https://blog.csdn.net/sistwl/article/details/81381937

https://www.cnblogs.com/GnibChen/p/8649476.html

 libwebsockets

https://blog.csdn.net/qifengzou/article/details/50281545
https://blog.csdn.net/qq_39101111/article/details/79025438