怎么提取下面这段代码中book_author里面的作者名称

import requests
from lxml import etree
import re

def parser():
    url = 'http://www.douban.com/tag/%E5%B0%8F%E8%AF%B4/?focus=book'
    headers = {'User-Agent': 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT)'}
    html = requests.get(url=url,headers=headers).text
    tree = etree.HTML(html)
    book_list = tree.xpath('//div[@class="mod-list book-list"]/dl')
    print(book_list)
    with open('2.txt','w+',encoding='utf-8') as f:
        for dl in book_list:
            book_name = dl.xpath('./dd/a/text()')[0]
            book_author = dl.xpath('./dd/div/text()')[0]
            print(book_name,book_author)
            f.write(book_name+book_author)
            # f.write(+"\n")

if __name__ == '__main__':
    parser()

    代码那边不是有了吗？

        book_author = dl.xpath('./dd/div/text()')[0]
        author = book_author.split("/")[0].strip()

https://blog.csdn.net/qq_41755143/article/details/88587792