express基礎（二）：路由

//server.js
const express=require('express')
const app=express()
app.get('/user/login',(req,res)=>{
     res.send('user/ add ok')
 })
app.get('/user/del',(req,res)=>{
     res.send('user/ del ok')
 })

let userRouter=require('./router/userRouter')
let foodRouter=require('./router/foodRouter')
app.use('/user',userRouter)
app.use('/food',foodRouter)
app.listen(3000,()=>{
    console.log('server start')
})

//userRouter.js
const express=require('express')
const router=express.Router()

router.get('/add',(req,res)=>{
    res.send('user add')
})


router.get('/del',(req,res)=>{
    res.send('del add')
})
module.exports = router

//foodRouter.js
const express=require('express')
const router=express.Router()

router.get('/add',(req,res)=>{
    res.send('food add')
})
router.get('/del',(req,res)=>{
    res.send('food del')
})
module.exports=router