Puppeteer 选择查询 - 如何在 Puppeteer 中选择此查询？

Question

如何使用 puppeteer 选择此（要单击的 html 锚元素并导航到 Tutorial 页面）查询？

我正在这样做，但它不起作用

const puppeteer = require('puppeteer');
const url = process.argv[2];
if (!url) {
    throw "Please provide URL as a first argument";
}
async function run() {
    const browser = await puppeteer.launch({
        headless: false,
        defaultViewport: null,
        slowMo: 10,
        args: ['--start-maximzed', '--disable-notifications']
    });
    const page = await browser.newPage();
    await page.goto(url);

    await page.waitForSelector(".python-navigation .navigation.menu .tier-1.element-3  a", {
        visible: true
    });
    await page.click(".python-navigation .navigation.menu .tier-1.element-3  a");

    await page.waitForSelector(".documentation-banner .download-buttons ", {
        visible: true
    });
    const elem =  await page.$$('.documentation-banner .download-buttons a');
    await elem[0].click();


    await page.waitForSelector(".contentstable", {
        visible: true
    });
    elem =  await page.$$('.contentstable')[0].$$('tbody')[0].$$('tr')[0].$$('td')[0].$$('p')[1];
    await elem.click();


    await page.pdf({path: 'pdfGenerated.pdf',format:"A4"});

    console.log("Success");
    browser.close();
}
run();

我应该写什么来代替elem = await page.$$('.contentstable')[0].$$('tbody')[0].$$('tr')[0].$$('td')[0].$$('p')[1];这一行？

Answer 1

点击一个元素，你可以使用这个代码：

await page.click(".contentstable tbody tr td p:nth-child(2) a");