text: let express = require('express');
  const ChromeLauncher = require('chrome-launcher');
  let app = express();
  let router = require('./router/main')(app);
  let port = 3000;
  
  app.set('views', __dirname + '/views');
  //html, ejs 실행 가능하게
  app.set('view engine', 'ejs');
  app.engine('html', require('ejs').renderFile);
  app.use(express.static('public'));
  
  let server = app.listen(port, function(){
      console.log("Express server has started on port "+ port)
      console.log("hello");
  });
  