try1/server.js

var http = require('http');

http.createServer(function(request,response){
	// 发送 HTTP 头部 
	// HTTP 状态值: 200 : OK
	// 内容类型: text/plain
	response.writeHead(200,{'Content-Type':'text/plain'});

	//响应数据
	response.end('Hello world\n');

}).listen(8888);

console.log('Server running at 8888 port');