node的express框架

var express = require('express'),
   app = express(),
   path = require('path'),
   os = require('os'),
   port = 3002;
var htmlPath = path.join(__dirname, "public");
app.use(express.static(htmlPath));

//==============启动服务==================
app.listen(port, function () {
   //console.log("Example app listening on port " + port);
   console.log("native browse: http://localhost:" + port);
   console.log("ip browse: http://" + getLocalIP() + ":" + port);
});
// console.log(os.networkInterfaces());
function getLocalIP() { //获取IP地址
   const WLAN = ((os.networkInterfaces()).WLAN)[1];
   return WLAN.address;
}