1-6 对跳转页面内容解析

const target = browser.waitForTarget  获取跳转页面
const newPage = await target.page() 获取跳转页面的控制权

const puppeteer = require("puppeteer");
const url = "http://www.kuwo.cn/";
(async () => {
    const browser = await puppeteer.launch({
        headless:false,
        defaultViewport: null, //可视区域最大化
    });
    const page = await browser.newPage();
    await page.goto(url)
    var a2 =  await page.$(".sub_nav  a:nth-child(2)");
    await a2.click()
    const target = await browser.waitForTarget(t=>t.url().includes("rankList"));
    const newPage = await target.page();
    var res = await newPage.$eval(".btns .play span",ele=>ele.innerHTML);
    console.log(res)    
})();