入门 http://www.nodebeginner.org/index-zh-cn.html#a-full-blown-web-application-with-nodejs
http://www.kuqin.com/webpagedesign/20110812/105100.html
D:\>npm set proxy=http://172.17.18.80:8080
D:\>npm install express -global
原文：http://www.cnblogs.com/danghuijian/p/3956520.html