~~~ npm i co node-fetch -D ~~~ ~~~ //co库执行Promise和Generator //co.js const co = require('co'); const fetch = require('node-fetch'); var url ="https://douban.uieee.com/v2/movie/27663742" co(function *(){ const res = yield fetch(url); const data = yield res.json(); console.log(data.summary) }) ~~~