Puppeteer 爬取网页数据返回空数组问题解决方案

const puppeteer = require("puppeteer"); const express = require("express"); const cors = require("cors"); const app = express(); app.use(cors()); let data = []; (async () => {   const browser = await puppeteer.launch({     headless: true, // 建议使用 headless 模式     defaultViewport: null,   });   const page = await browser.newPage();   for (let pageNumber = 1; pageNumber <= 42; pageNumber++) {     await page.goto(`https://naamhinaam.com/baby-girl-names-a?page=${pageNumber}`);     await page.waitForTimeout(3000);      // 使用更简洁、稳定的选择器     let nameElements = await page.$$(`a.nsg__name`);     let meaningElements = await page.$$(`div.nsg__meaning > i`);      // 确保名字和含义的数量一致     if (nameElements.length !== meaningElements.length) {       console.warn(`页面 ${pageNumber} 上的名字和含义数量不一致，可能存在问题。`);       continue; // 跳过当前页面     }      for (let i = 0; i < nameElements.length; i++) {       let fullName = "";       try {         let name = await page.evaluate(el => el.textContent, nameElements[i]);         let meaning = await page.evaluate(el => el.textContent, meaningElements[i]);         fullName = `${name.split(/[nt]/).join('').trim()}, ${meaning}`;         data.push({ fullName });       } catch (error) {         console.error(`处理页面 ${pageNumber} 的第 ${i} 个元素时出错：`, error);       }     }   }   console.log(data);   await browser.close(); })(); app.get("/", (req, res) => {   res.status(200).JSon(data); });  app.listen(3000, () => {   console.log("App is running..."); });