` const express = require("express"); const app = express();
app.get("/", (req, res) => { res.send("hello"); });
app.listen(80, () => { console.log("服务起来了,在http://localhost"); }); `
` const express = require("express"); const app = express();
app.get("/", (req, res) => { res.send("hello"); });
app.listen(80, () => { console.log("服务起来了,在http://localhost"); }); `