按一个网页的来，最好最后能到EXPRESS.JS。
http://www.nodebeginner.org/index-zh-cn.html
这样就能对比DJANGO，看看两者的WEB框架，加深认识。
var http = require("http");
function onRequest(request, response){
console.log("Request recevied.");
response.writeHead(200, {"Content-type":"text/plain"});
response.write("Hello, World.");
response.end();
}
http.createServer(onRequest).listen(8888);
console.log("Server is listen at 8888....");