一、配置初始环境

npm init -y
npm add koa

二、配置引擎环境(模块)

koa-art-template

npm i art-template koa-art-template -S

const Koa = require('koa');
const render = require('koa-art-template');
const app = new Koa();
const {resolve} = require('path');
render(app, {
  root: resolve(__dirname, 'views'),
  extname: '.html', //后缀也可以写成.art
  debug: process.env.NODE_ENV !== 'production'
});
app.use(async function (ctx) {
  await ctx.render('user');
});
app.listen(8080);

三、配置静态资源环境