能看看我这组代码该怎么改吗？

import requests
from lxml import etree
import asyncio
import aiohttp
import aiofiles
import os
def get_url(url):
resp=requests.get(url)
resp.encoding="utf-8"
resp_text=resp.text
result=[]
tree=etree.HTML(resp_text)
trss=tree.xpath('//div[@class="mulu"]/center/table')
for tab in trss:
chapter={}
trs=tab.xpath('./tr')
title=trs[0].xpath(".//text()")
titles="".join(title).strip()
hrefs_list=[]
for tr in trs[1:]:
href=tr.xpath('./td/a/@href')
hrefs_list.extend(href)
chapter['titles']=titles
chapter['hrefs_list']=hrefs_list
result.append(chapter)
async def download_chapter(name,hrefs):
if not os.path.exists(name):
os.makedirs(name)
tasks=[]
for href in hrefs:
t=asyncio.create_task(download_one(name,hrefs))
tasks.append(t)
await asyncio.wait(tasks)
async def download_one(name,href):
async with aiohttp.ClientSession()as session:
async with session.get(href)as resp:
page_source =await resp.text(encoding='utf-8')
tree=etree.HTML(page_source)
title_name = tree.xpath('/html/body/div[3]/h1/text()')[0].strip()
content="\n".join(tree.xpath('/html/body/div[3]/div[2]/p//text()'))
async with aiofiles.open(f"{name}/{title_name}.txt",mode="w",encoding="utf-8")as f:
await f.write(content)
print(title_name,"下载完成")

def main():
url ="https://www.mingchaonaxieshier.com/%22
chapters=get_url(url)
for chapter in chapters:
titles=chapter['titles']
hrefs_list=chapter['hrefs_list']
asyncio.run(download_chapter(titles,hrefs_list))

if name == 'main':
main()

import asyncio
import os

import aiofiles
import aiohttp
import requests
from lxml import etree


def get_url(url):
    resp = requests.get(url)
    resp.encoding = "utf-8"
    resp_text = resp.text
    result = []
    tree = etree.HTML(resp_text)
    trss = tree.xpath('//div[@class="mulu"]/center/table')
    for tab in trss:
        chapter = {}
        trs = tab.xpath('./tr')
        title = trs[0].xpath(".//text()")
        titles = "".join(title).strip()
    hrefs_list = []
    for tr in trs[1:]:
        href = tr.xpath('./td/a/@href')
        hrefs_list.extend(href)
        chapter['titles'] = titles
        chapter['hrefs_list'] = hrefs_list
        result.append(chapter)
    return  result


async def download_chapter(name,hrefs):
    if not os.path.exists(name):
        os.makedirs(name)
    tasks = []
    for href in hrefs:
        t = asyncio.create_task(download_one(name,href))
        tasks.append(t)
    await asyncio.wait(tasks)


async def download_one(name,href):
    async with aiohttp.ClientSession() as session:
        async with session.get(href) as resp:
            page_source = await resp.text(encoding = 'utf-8')
            tree = etree.HTML(page_source)
            title_name = tree.xpath('/html/body/div[3]/h1/text()')[0].strip()
            content = "\n".join(tree.xpath('/html/body/div[3]/div[2]/p//text()'))
    async with aiofiles.open(f"{name}/{title_name}.txt",mode = "w",encoding = "utf-8") as f:
        await f.write(content)
    print(title_name,"下载完成")


def main():
    url = "https://www.mingchaonaxieshier.com/%22"


    chapters = get_url(url)
    for chapter in chapters:
        titles = chapter['titles']
    hrefs_list = chapter['hrefs_list']
    asyncio.run(download_chapter(titles,hrefs_list))

if __name__ == '__main__':

    main()

建议你把执行出现的问题描述一下，然后代码用截图的方式。

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