//引入express中间件
var express = require('express');
var app = express();

//指定启动服务器到哪个文件夹，我这边指的是dist文件夹
app.use(express.static('src'));

//监听端口为3000
var server = app.listen(3000, function () {
    var host = server.address().address;
    var port = server.address().port;
    console.log('Example app listening at http://%s:%s', host, port);
});