import requests from bs4 import BeautifulSoup def get_html(url): headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'} try: response = requests.get(url, headers=headers) response.raise_for_status() response.encoding = response.apparent_encoding return response.text except: return "" def parse_html(html): soup = BeautifulSoup(html, 'html.parser') book_list = soup.find_all('li', class_='subject-item') for book in book_list: title = book.find('div', class_='info').find('a')['title'] author_info = book.find('div', class_='pub').get_text().split('/') author = author_info[0].strip() publisher = author_info[-3].strip() print('书名：', title) print('作者：', author) print('出版社：', publisher) print('--------------------------') if __name__ == '__main__': for i in range(0,1000,20): url = 'https://book.douban.com/tag/%E5%8E%86%E5%8F%B2?start='+str(i)+'&type=T' html = get_html(url) parse_html(html)错误修改

感谢提供代码，这个代码中的问题是没有加上判断是否有书籍信息，所以在最后一页时会报错。同时，代码中的缩进格式也需要调整，可以参考下面的修改后的代码：

import requests
from bs4 import BeautifulSoup


def get_html(url):
    headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'}
    try:
        response = requests.get(url, headers=headers)
        response.raise_for_status()
        response.encoding = response.apparent_encoding
        return response.text
    except:
        return ""


def parse_html(html):
    soup = BeautifulSoup(html, 'html.parser')
    book_list = soup.find_all('li', class_='subject-item')
    if not book_list:
        print('没有更多书籍了！')
        return
    for book in book_list:
        title = book.find('div', class_='info').find('a')['title']
        author_info = book.find('div', class_='pub').get_text().split('/')
        author = author_info[0].strip()
        publisher = author_info[-3].strip()
        print('书名：', title)
        print('作者：', author)
        print('出版社：', publisher)
        print('--------------------------')


if __name__ == '__main__':
    for i in range(0, 1000, 20):
        url = 'https://book.douban.com/tag/%E5%8E%86%E5%8F%B2?start=' + str(i) + '&type=T'
        html = get_html(url)
        parse_html(html)

在这个代码中，我们加入了对书籍列表是否为空的判断，避免了在最后一页时出现的错误。同时，我们将函数的缩进格式进行了调整，使代码更加清晰易读。