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。