关于python:acwing查看做题总数

import re
import requests
from lxml import etree
class Spider(object):

def __init__(self):    self.base_url = 'https://www.acwing.com/problem/{}/'    self.headers = {        'Cookie': 'csrftoken=mixU7wxaV35yyyCDhqbXcIoW3z3Ms0NH31jbbqH; sessionid='                  '344bo4nowvp9misa9suynjiwz2i5jcof; file_2922585_readed=""; file_2302034_readed=""',        'Referer': 'https://www.acwing.com/about/',        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'                      ' (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36'    }    self.count = 0def get_html(self, url):    html = requests.get(        url=url,        headers=self.headers    ).text    return htmldef xpath_func(self, html):    name_bds = '//tbody/tr[./td/span[@title="已通过这道题目"]]/td/a/text()'    base_obj = etree.HTML(html)    name_lists = base_obj.xpath(name_bds)    L = []    for i in name_lists:        L.append(i.strip())    return Ldef re_func(self, html, re_bds):    pattern = re.compile(re_bds, re.S)    re_list = pattern.findall(html)    return re_listdef parse_html(self, url):    html = self.get_html(url)    L = self.xpath_func(html)    return Ldef run(self):    warning = input('[Skrill下载](https://www.gendan5.com/wallet/Skrill.html)您马上就要爬取acwing了，看一下你的做题数，您的劳动成果将会在上面展现进去，确定要看吗？(Y/N)')    if warning == 'Y':        print('爬虫零碎曾经启动...正在致力抓取，请稍等....')        print('+---------------------------------+')        print('|            name                 |')        print('+---------------------------------+')        for i in range(1, 80):            url = self.base_url.format(i)            L = self.parse_html(url)            for _ in L:                self.count += 1                print('|   ' + _)        print('+---------------------------------+')        print('通过您的不懈努力，您一共做了' + str(self.count) + '道题，持续致力！！')    else:        print('曾经退出，你这个弱者')

if name == '__main__':

spider = Spider()spider.run()