如何通过selenium访问无头chrome中的系统文件索引？

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

chrome_options = Options()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-gpu')
chrome_options.add_experimental_option('prefs', {
    'download.default_directory': '文件下载路径',
    'download.prompt_for_download': False,
    'download.directory_upgrade': True,
    'safebrowsing.enabled': True
})

driver = webdriver.Chrome(options=chrome_options)

driver.get('目标网页URL')
driver.find_element_by_id('下载按钮ID').click()

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

# 等待文件下载完成
wait = WebDriverWait(driver, 10)
wait.until(EC.invisibility_of_element_located((By.ID, '下载进度条ID')))

import os

file_path = os.path.join('文件下载路径', '下载的文件名')
# 对文件进行操作，例如读取、复制、移动等