1-2 koa-router

安装koa-router

npm i @koa/router

引用并实例化koad-router

const Koa=require('koa')
const Router=require('@koa/router')
const app= new Koa()
const router = new Router()
router.get('/',ctx=>{ctx.body='Hello World!'})
router.get('/api',ctx=>{ctx.body='Hello Api!'})
app.use(router.routes()).use(router.allowedMethods())
app.listen(3000)

启动

node index.js