引入模块:
var http=require('http')
创建服务器:
http.createServer(function(request,response){
}).listen(8888)
var http = require('http')
http.createSever(function(request,response){
//发送响应头
response.writeHead(200,{'Content-Type':"text/plain});
//输出响应内容
response.write("hello world");
response.end()
}).listen(8888)