const express=require("express")

const app=express()

app.all('*',(req,res,next)=>{
    res.header('Access-Control-Allow-Origin',"*")
    res.header('Access-Control-Allow-Methods',"POST,GET")
    next();
})

app.get('/getdata',(req,res)=>{
    res.json({
        name:"geyao",
        age:18
    })
})

app.listen(3003,()=>{
    console.log("ok")
})

$.ajax("http://localhost:3003/getdata",{
    success(data){
        console.log(data)
    }
})