在sekenium python中滚动div的自定义滚动条

我正在使用Selenium从Whatsapp网站上的Whatsapp中刮取联系人。要刮除所有联系人，我需要滚动一个有滚动条的div，但我无法在该div中向下滚动，它会在您向下滚动时加载联系人。 尝试在文档高度上使用javascript.excute，并在元素上滚动。发送密钥PAGE_DOWN也不起作用

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from bs4 import BeautifulSoup
chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument('window-size=1920x1080')
chrome_options.add_argument('--log-level=3')


driver = webdriver.Chrome(executable_path="driver/chromedriver.exe",options=chrome_options)
driver.get("https://web.whatsapp.com/")
driver.find_element_by_xpath('//*[@title="New chat"]').click() #click on new chat button to open contacts
test2 = driver.find_element_by_xpath("//div[@class='_1c8mz rK2ei']") #this div has an custom scrollbar and should be scrolled down to load more contacts


driver.execute_script('arguments[0].scrollIntoView(true);',test2) #tried this
test2.send_keys(Keys.PAGE_DOWN) # and also this

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使用您的代码试用更新问题。添加了带有注释的代码