const Koa = require('../application')const app = new Koa()const responseData = {}app.use(async (ctx, next) => {responseData.name = 'xiaoming'await next()ctx.body = responseData})app.use(async (ctx, next) => {responseData.gender = 'male'await next()})app.use(async (ctx) => {responseData.habbit = 'music'})app.listen(3000, '127.0.0.1', () => {console.log('listening on the 3000')})