Puppeteer API: https://puppeteer.bootcss.com/api
1. 安装：
$ yarn add puppeterr
2. 网页截图实例：
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch({ headless: 'new' });
const page = await browser.newPage();
await page.goto('https://www.baidu.com/');
await page.screenshot({path: 'baidu.png', fullPage: true});
await browser.close();
})();
Other ref：https://segmentfault.com/a/1190000012924029
Other ref：https://juejin.cn/post/7047462936293408776