express路由 1.简单路由示例const express = require('express') const app = express() app.get('/',(req,res)=>{ res.send("hello") }) app.listen(80,()=>{ console.log("http://127.0.0.1") })2.路由模块示例主程序const express = require('express') const router = require('./route') const app = express() app.use(router) app.listen(80,()=>{ console.log("http://127.0.0.1") })路由模块route.jsconst express = require("express") const router = express.Router() router.get('/',(req,res)=>{ res.send("hello router") }) module.exports = router