基礎NodeJS教學
http://www.nodebeginner.org/index-zh-tw.html
http://jaceju.net/2015/07/26/laravel-events-broadcasting/
http://blogger.gtwang.org/2014/03/socket-io-node-js-realtime-app.html
http://stackoverflow.com/questions/16469086/npm-cant-install-socket-io

centos安裝development環境
http://stackoverflow.com/questions/18076157/why-does-configure-say-no-c-compiler-found-when-gcc-is-installed
http://www.phpini.com/linux/rhel-centos-install-node-js
http://blogger.gtwang.org/2014/03/socket-io-node-js-realtime-app.html
http://stackoverflow.com/questions/17058298/error-cannot-find-module-socket-io