如何用Selenium实时获取抖音直播间弹幕互动消息内容？

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time

# 创建浏览器实例
driver = webdriver.Chrome()



# 进入指定的直播间
driver.get('https://live.douyin.com/196820590235')

# 定位直播间弹幕互动消息框，并获取其元素对象
interact_box = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.XPATH, '//div[@class="webcast-chatroom___messages"]')))#聊天及其他消息
interactbox_box = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.XPATH, '//div[@class="webcast-chatroom___bottom-message"]')))#新进直播间消息
oldval=""
oldboxval=""
# 循环获取弹幕互动消息内容
while True:
    # 从弹幕互动消息框中获取弹幕互动消息内容
    interact_msg = interact_box.text
    if oldval!=interact_msg:
        print("弹幕聊天关注送礼消息")
        print(interact_msg.replace(oldval,""))
        oldval=interact_msg


    interact_msg_box = interactbox_box.text
    if oldboxval!=interact_msg_box:
        print("新建直播间消息")
        print(interact_msg_box.replace(oldboxval,""))
        oldboxval=interact_msg_box


    # 等待一段时间后再次获取弹幕互动消息内容
    time.sleep(1)