python href = re.compile('content'

I'm sorry, but the code you provided is incomplete and contains a syntax error. Please provide more information about what you are trying to achieve with this code snippet.

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运行下面代码，运行结果没有保存文件，请帮我找出原因 # -- coding: utf-8 -- # 指定文件编码格式为utf-8 import urllib.request import re def getNovertContent(): url = 'http://www.quannovel.com/read/640/' req = urllib.request.Request(url) req.add_header( 'User-Agent', ' Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36') data = urllib.request.urlopen(req).read().decode('gbk') str1 = str(data) # 将网页数据转换为字符串 reg = r'<li><a href="(.?)" title=".?">(.?)</a><li>' reg = re.compile(reg) urls = reg.findall(str1) for url in urls: novel_url = url[0] novel_title = url[1] chapt = urllib.request.urlopen(novel_url).read() chapt_html = chapt.decode('gbk') reg = r'</script> (.?)</script> type="text/javascript">' reg = re.compile(reg, re.S) chapt_content = reg.findall(reg, chapt_html) chapt_content = chapt_content[0].replace( " ", "") chapt_content = chapt_content.replace("<br />", "") print("正在保存 %s" % novel_title) with open("{}.txt".format(novel_title), 'w') as f: f.write(chapt_content) getNovertContent()

代码中存在两个问题导致没有保存文件：

1. 在正则表达式匹配章节内容时，应该调用 `reg.findall(chapt_html)` 而不是 `reg.findall(reg, chapt_html)`。

2. 在打开文件时，需要指定文件的编码格式为 utf-8，因为在代码开头已经指定了文件编码格式为 utf-8。可以将 `with open("{}.txt".format(novel_title), 'w') as f:` 改为 `with open("{}.txt".format(novel_title), 'w', encoding='utf-8') as f:`。

修改后的代码如下：

# -- coding: utf-8 --
# 指定文件编码格式为utf-8
import urllib.request
import re

def getNovertContent():
    url = 'http://www.quannovel.com/read/640/'
    req = urllib.request.Request(url)
    req.add_header('User-Agent', ' Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36')
    data = urllib.request.urlopen(req).read().decode('gbk')
    str1 = str(data) # 将网页数据转换为字符串
    reg = r'<li><a href="(.+?)" title=".+?">(.+?)</a><li>'
    reg = re.compile(reg)
    urls = reg.findall(str1)
    for url in urls:
        novel_url = url[0]
        novel_title = url[1]
        chapt = urllib.request.urlopen(novel_url).read()
        chapt_html = chapt.decode('gbk')
        reg = r'</script>    (.+?)</script> type="text/javascript">'
        reg = re.compile(reg, re.S)
        chapt_content = reg.findall(chapt_html)
        chapt_content = chapt_content[0].replace("    ", "")
        chapt_content = chapt_content.replace("<br />", "")
        print("正在保存 %s" % novel_title)
        with open("{}.txt".format(novel_title), 'w', encoding='utf-8') as f:
            f.write(chapt_content)

getNovertContent()

import re,tkinter,requests,threading,tqdm as tt root = tkinter.Tk() root.title('在线视频解析') root.geometry('500x590+550+350') headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0'} ac = tkinter.Listbox(root, width=50, height=20, font=('黑体', 12)) ac.grid(row=2, columnspan=10, sticky="n" + "s" + "w" + "e") def sousuo(): i = b1.get() ac.delete(0, 'end') def extract_music_info(content): p = '<em>|</em>' content = re.sub(p, '', content, flags=re.S) pattern = re.compile('subject.*?href="(.*?)">(.*?)</a>', flags=re.S) return pattern.findall(content) def search_music(): url = 'https://www.hifini.com/search-' + i + '-1.htm' response = requests.get(url=url, headers=headers) return response.text def update_listbox(music_list): for music in music_list: pppp = music[1] + ":" + music[0] ac.insert('end', pppp) content = search_music() music_list = extract_music_info(content) update_listbox(music_list) def xiazzi(): def download_music(): ppp = ac.get(ac.curselection()) pp = re.search('thread.*?htm', ppp) v = pp.group() url1 = 'https://www.hifini.com/' + v response = requests.get(url=url1, headers=headers) ppp = response.text l2 = re.search('<script>.*?title:..(.*?).,.*?author:.(.*?).,.*?url:..(.*?).,', ppp, flags=re.S) p = 'https://www.hifini.com/' + l2.group(3) response = requests.get(url=p, headers=headers, stream=True) # 设置 stream=True 以启用流式下载 total_size = int(response.headers.get('Content-Length')) music_name = '{}-{}.mp3'.format(l2.group(2), l2.group(1)) progress_bar = tt.tqdm(total=total_size, unit='B', unit_scale=True) # 创建进度条 with open(music_name, 'wb') as f: for data in response.iter_content(chunk_size=1024): progress_bar.update(len(data)) # 更新进度条 f.write(data) progress_bar.close() # 关闭进度条 print(music_name) threading.Thread(target=download_music).start() a1 = tkinter.Label(root, text='音乐下载器', anchor="center", font=('黑体', 24)) a1.grid(row=0, columnspan=10, sticky="n" + "s" + "w" + "e") b1 = tkinter.Entry(root, width=35, font=('黑体', 16), ) b1.grid(row=1, column=3, padx=15) search_button = tkinter.Button(root, text='搜索', command=sousuo) search_button.grid(row=1, column=4) download_button = tkinter.Button(root, text='下载', command=xiazzi) download_button.grid(row=3, column=4) root.mainloop() 将download_button带有下载行为的按钮添加进列表，

您可以直接将download_button添加到ac（Listbox）中，然后在xiazzi函数中获取所选项，并执行下载操作。以下是修改后的代码示例：

import re
import tkinter
import requests
import threading
import tqdm as tt

root = tkinter.Tk()
root.title('在线视频解析')
root.geometry('500x590+550+350')
headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0'}
ac = tkinter.Listbox(root, width=50, height=20, font=('黑体', 12))
ac.grid(row=2, columnspan=10, sticky="n" + "s" + "w" + "e")


def sousuo():
    i = b1.get()
    ac.delete(0, 'end')

    def extract_music_info(content):
        p = '<em>|</em>'
        content = re.sub(p, '', content, flags=re.S)
        pattern = re.compile('subject.*?href="(.*?)">(.*?)</a>', flags=re.S)
        return pattern.findall(content)

    def search_music():
        url = 'https://www.hifini.com/search-' + i + '-1.htm'
        response = requests.get(url=url, headers=headers)
        return response.text

    def update_listbox(music_list):
        for music in music_list:
            pppp = music[1] + ":" + music[0]
            ac.insert('end', pppp)

    content = search_music()
    music_list = extract_music_info(content)
    update_listbox(music_list)


def xiazzi():
    def download_music():
        ppp = ac.get(ac.curselection())
        pp = re.search('thread.*?htm', ppp)
        v = pp.group()
        url1 = 'https://www.hifini.com/' + v
        response = requests.get(url=url1, headers=headers)
        ppp = response.text
        l2 = re.search('<script>.*?title:..(.*?).,.*?author:.(.*?).,.*?url:..(.*?).,', ppp, flags=re.S)
        p = 'https://www.hifini.com/' + l2.group(3)
        response = requests.get(url=p, headers=headers, stream=True)
        total_size = int(response.headers.get('Content-Length'))
        music_name = '{}-{}.mp3'.format(l2.group(2), l2.group(1))
        progress_bar = tt.tqdm(total=total_size, unit='B', unit_scale=True)
        with open(music_name, 'wb') as f:
            for data in response.iter_content(chunk_size=1024):
                progress_bar.update(len(data))
                f.write(data)
        progress_bar.close()
        print(music_name)

    ac_value = ac.get(ac.curselection())
    download_button = tkinter.Button(ac, text=ac_value, command=xiazzi)
    ac.insert('end', download_button)


a1 = tkinter.Label(root, text='音乐下载器', anchor="center", font=('黑体', 24))
a1.grid(row=0, columnspan=10, sticky="n" + "s" + "w" + "e")
b1 = tkinter.Entry(root, width=35, font=('黑体', 16), )
b1.grid(row=1, column=3, padx=15)
search_button = tkinter.Button(root, text='搜索', command=sousuo)
search_button.grid(row=1, column=4)
root.mainloop()

这样，当用户选择某个音乐后，下载按钮会根据选择的音乐动态更新，点击下载按钮即可执行下载操作。