selenium切换标签页driver.close()无法运行

import selenium
from selenium import webdriver
import os
import requests
from PyPDF2 import PdfFileReader
import random
import time
from selenium.webdriver.common.keys import Keys
import pandas as pd




def makedirs_D():
    file_path = 'D:'+"\\公司年报\\"
    if not os.path.exists(file_path):
        os.makedirs(file_path)
    print("New file_path:",file_path)




# 解析网址
def get_html_content(url):
    header = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36'}
    res = requests.get(url, headers=header)
    if res.status_code == 200:
        res.encoding="UTF-8"
        # print(res.content)
        # print("Sucessfully Got urlText!")
        return res.content
    else:
        print("Failed to get urlText!")


# 保存pdf
def report_save(url, pdf_name):
    report = get_html_content(url)
    path = "D:\\公司年报\\" + pdf_name + ".pdf"
    with open(path, 'wb') as f:
        f.write(report)
        # print("Sucessfully Saved PDFreport!")



# 获取年报页数
def get_num_pages(pdf_name):
    path = "D:\\公司年报\\" + pdf_name + ".pdf"
    reader = PdfFileReader(path)
    if reader.isEncrypted:
        reader.decrypt('')
    page_num = reader.getNumPages()
    return page_num



driver = webdriver.Chrome(r'D:\softs\python3.8\Scripts\chromedriver.exe')
driver.implicitly_wait(5)
url = 'http://www.cninfo.com.cn/new/commonUrl/pageOfSearch?url=disclosure/list/search&checkedCategory=category_ndbg_szsh#sse'
driver.get(url)

# # 修改财报公布日期期间
# driver.find_element_by_xpath('//tbody/tr[4]/td[7]/div/span').click()
# driver.find_element_by_xpath('/html/body/div[5]/div[1]/div[1]/button[7]').send_keys(Keys.ENTER)

def main():
    makedirs_D()
    items = []
    count = 1

    while count <= 1:
        count += 1
        time.sleep(2)
        all_tr = driver.find_element_by_xpath('//*[@id="main"]/div[2]/div[1]/div[1]/div[2]/div/div[3]/table/tbody').find_elements_by_xpath('.//tr')
        for tr in all_tr:

            item = {}
            a = random.random() * 3
            time.sleep(a)  # 设置随机休息

            number = tr.find_elements_by_xpath('./td')[0].find_element_by_xpath('.//span').text
            item['公司代码'] = number
            name_pre = tr.find_elements_by_xpath('./td')[1].find_element_by_xpath('.//span').text
            name = name_pre.replace('*', '~')     # windows命名不能包含*，去除*
            item['公司名称'] = name
            title = tr.find_elements_by_xpath('./td')[2].find_element_by_xpath('.//a').text
            item['公告标题'] = title
            date = tr.find_elements_by_xpath('./td')[3].find_element_by_xpath('.//span').text
            item['公告发布日期'] = date
            year = str(int(date[0:4]) - 1)       # 次年发布的头年年度报告
            item['年报对应年份'] = year
            pdf_name = number + "-" + name + "-" + year + "-" + title   # 设置pdf命名
            # print(pdf_name)

            handle_main = driver.current_window_handle  # 句柄
            tr.find_elements_by_xpath('./td')[2].find_element_by_xpath('.//a').send_keys(Keys.ENTER)  # 点击进入网页

            if len(driver.window_handles) > 1:          # 注意
                for handle in driver.window_handles:
                    if handle != handle_main:
                        driver.switch_to.window(handle)  # 切换到新句柄
                        pdf_href = driver.find_element_by_xpath(
                            '//*[@id="noticeDetail"]/div/div[2]/div[1]/a').get_attribute('href')   # 获取pdf网址
                        print(pdf_href)
                        report_save(pdf_href, pdf_name)
                        driver.close()
                        driver.switch_to.window(handle_main)   # 切换回主句柄

        driver.quit()

......

if __name__=="__main__":
    main()

Q：注释掉driver.close()则程序无法持续运行； 不注释掉则driver中存多个标签页且标签页切换时从右往左逐页过渡。请问如何调整！先致谢！

driver.close() 注释掉则程序无法持续运行，不注释掉则driver标签页越来越多且切换到主句柄时是依次从标签页从右向左。请求帮助！

close方法关闭了实例，重新创建driver即可