rv.parent?.requestDisallowInterceptTouchEvent(true) 什么意思

这行代码是用于在Android中处理Touch事件的。其中，`rv`是一个RecyclerView或者是其他可滚动控件的实例。`parent`是指`rv`的父级ViewGroup，如果存在的话。`requestDisallowInterceptTouchEvent(true)`方法的作用是告诉`parent`不要拦截（`intercept`）当前的Touch事件，而是将该事件传递给`rv`自己来处理。这通常用于避免RecyclerView被嵌套在其他可滚动控件中时，出现滑动冲突的情况。

相关问题

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。

cdf_value = rv.cdf(x)中的cdf是什么意思

在代码 `cdf_value = rv.cdf(x)` 中，`cdf` 是累积分布函数（Cumulative Distribution Function）的缩写。累积分布函数是用来描述随机变量取值小于或等于某个给定值的概率的函数。

在这段代码中，`rv` 是一个概率分布对象，通过调用 `cdf(x)` 方法，可以计算随机变量在给定值 `x` 之前的累积概率。换句话说，`cdf_value` 是随机变量取值小于或等于 `x` 的概率。

累积分布函数在统计学和概率论中经常被使用，它可以帮助我们计算和理解随机变量的概率分布情况。在正态分布中，累积分布函数描述了某个值在正态分布中出现的概率。