如何使用webdriver js和Node js向下滚动到网页末尾

const { Builder, By, Key, until } = require('selenium-webdriver');
const chrome = require('selenium-webdriver/chrome');

async function scrollDownToBottom() {
  // 创建Chrome浏览器实例
  const driver = await new Builder().forBrowser('chrome').setChromeOptions(new chrome.Options().headless()).build();
  
  try {
    // 打开目标网页
    await driver.get('https://example.com');
    
    // 模拟向下滚动到网页末尾
    await driver.executeScript('window.scrollTo(0, document.body.scrollHeight)');
    
    // 等待一段时间，以便网页加载更多内容
    await driver.sleep(2000);
    
    // 继续向下滚动，直到网页末尾
    while (true) {
      const initialHeight = await driver.executeScript('return document.body.scrollHeight');
      await driver.executeScript('window.scrollTo(0, document.body.scrollHeight)');
      await driver.sleep(2000);
      const currentHeight = await driver.executeScript('return document.body.scrollHeight');
      
      // 如果已经滚动到网页末尾，则退出循环
      if (currentHeight === initialHeight) {
        break;
      }
    }
    
    // 打印滚动到网页末尾后的页面内容
    console.log(await driver.getPageSource());
  } finally {
    // 关闭WebDriver实例
    await driver.quit();
  }
}

scrollDownToBottom();