koa2小结

1、路径 path

访问静态资源

const Koa = require('koa');

const path = require('path');

const static = require('koa-static');//中间件

const app = new Koa();

const staticPath = './';

app.use(static(path.join(__dirname,staticPath)))

app.use(async(ctx)=>{

   ctx.body = "hello world"

})

app.listen(3000,()=>{

  console.log('[3000] server is starting at port 3000')

})