notes/web
web
Sitemap generator - http://davidensinger.com/2013/03/generating-a-sitemap-in-jekyll-without-a-plugin/
simpleHTTPServer
python -m SimpleHTTPServer 8000
middleware
Middleware is simply a function that accepts an http handler and returns an http.handler.
中间件是一个个很有趣的东西,它接受的参数是一个函数,返回一个函数。