Puppeteer--创建实例

const puppeteer = require(‘puppeteer‘);
let request = require(‘request-promise-native‘);

//使用 puppeteer.launch 启动 Chrome
(async () => {
    const browser = await puppeteer.launch({
        headless: false,     //有浏览器界面启动
        slowMo: 100,       //放慢浏览器执行速度，方便测试观察
        args: [                //启动 Chrome 的参数
            ‘–no-sandbox‘,
            ‘--window-size=1280,960‘
        ],
    });
    const page = await browser.newPage();
    await page.goto(‘https://www.baidu.com‘);
    await page.close();
    await browser.close();
})();

(async () => {
    //通过 9222 端口的 http 接口获取对应的 websocketUrl
    let version = await request({
        uri:  "http://127.0.0.1:9222/json/version",
        json: true
    });
    //直接连接已经存在的 Chrome
    let browser = await puppeteer.connect({
        browserWSEndpoint: version.webSocketDebuggerUrl
    });
    const page = await browser.newPage();
    await page.goto(‘https://www.baidu.com‘);
    await page.close();
    await browser.disconnect();
})();