//1.引入http服务
let http = require('http')
//2.创建服务器
let create = http.createServer((req, res) => { 
    res.setHeader('content-type','text/plain;charset=utf-8');
    res.end("中国牛逼,nsds");
    // res.end();
}).listen(3500)  //3.绑定监听端口


// let aa ='av'
// console.log(aa);