使用cheerio 抓取表格的第n 个元素？

Question

我想刮这张桌子的风柱https://www.bmreports.com/bmrs/?q=generation%2Ffueltype&fbclid=IwAR2p2a84CaJhgzF-YOU4MzOS-cMuZUpeDmLHFkWZU7-NauRHrA1owwdsMog 我可以刮整个桌子，但我不知道怎么做对其进行排序。理想情况下，我只会刮掉一列。const request = require('request');const cheerio = require('cheerio');request('https://www.bmreports.com/bmrs/?q=generation%2Ffueltype&fbclid=IwAR2p2a84CaJhgzF-YOU4MzOS-cMuZUpeDmLHFkWZU7-NauRHrA1owwdsMog', (error, response, html) =>{    if (!error && response.statusCode == 200)    {        const $ = cheerio.load(html);        const table = $('.gen-fuel');        var newArray = [];        var windArray = [];       // console.log(table.html());        $('td').each((i, el) =>        {            const item = $(el).html();            newArray.push(item);            console.log(item)        });        const every7thValue = (arr, nth) => arr.filter((e, i) => i % nth === nth - 1);        console.log(every7thValue(newArray, 7));        //console.log(newArray);    }});

Answer 1

像这样的东西怎么样

const request = require('request');

const cheerio = require('cheerio');

request(

    'https://www.bmreports.com/bmrs/?q=generation%2Ffueltype&fbclid=IwAR2p2a84CaJhgzF-YOU4MzOS-cMuZUpeDmLHFkWZU7-NauRHrA1owwdsMog',

    (error, response, html) => {

        if (!error && response.statusCode == 200) {

            const $ = cheerio.load(html);

            const winds = $('.gen-fuel tbody td:nth-child(8)')

                .map(function () {

                    return $(this).text();

                })

                .get();

            console.log(winds);

        }

    }

);

Cheerio 支持 CSS 选择器，凭借其强大的功能，您可以获得包含来自风列的所有值的数组