javascript，const express = require('express');，const app = express();，const port = 3000;，，app.get('/', (req, res) => {， res.send('Hello World!');，});，，app.listen(port, () => {， console.log(Server running at http://localhost:${port});，});，``javascript，const express = require('express');，const app = express();，const port = 3000;，，app.get('/', (req, res) => {， res.send('Hello World!');，});，，app.listen(port, () => {， console.log(Server running at http://localhost:${port});，});，``vb，Module HelloWorld， Sub Main()， Console.WriteLine("Hello, World!")， Console.ReadLine()， End Sub，End Module，``Powered By Z-BlogPHP 1.7.3