~~~
//引入http模塊
const http = require('http');
const url = require('url');
//創建服務
const server = http.createServer(function(req,res){
console.log(req.url);
const.log(url.parse(req.url,true));
})
//監聽端口號
server.listen(8000,function(){
console.log('server is created,listening on 8000 port');
})
~~~
## Http.createServer
http.createServer(requestListener)，它返回一個http.server的實例。
requestListener自動被添加到request事件中。
