一个简单的服务

const express = require('express');
const app = express();

const port = process.env.PORT || 3000;

app.get('/', (req, res) => {
  res.send('Hello World!!!');
});

app.listen(port, () => {
  console.log(`Express web app available at http://localhost:${port}`);
});

标签：Express,const,一个,res,app,express,简单,服务,port
来源： https://www.cnblogs.com/meyerzhao/p/16597122.html