nginx限流（原生模块）及OpenResty限流模块

参考文章：

- https://www.cnblogs.com/biglittleant/p/8979915.html

- https://www.cnblogs.com/HushAsy/p/10302291.html



OpenResty限流模块: lua-resty-limit-traffic:

github: https://github.com/openresty/lua-resty-limit-traffic/tree/master/lib/resty/limit