骚操作！那些富有感情的影视台词截图都是哪来的？

url = "https://assrt.net/xml/sub/610/610293.xml"

#封装头部
headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36'}
#获取网页源码
req = requests.get(url, headers=headers)

#正则匹配，并且子串直接获取下载地址
ans = re.search(u"(/download/.*?)\"", str(req.content, 'utf8'))
download_url = "https://assrt.net" + ans.group(1)

#下载内含字幕文件的zip文件到桌面
data = requests.get(download_url, headers=headers)
adr = "C:\\Users\\XU\\Desktop\\" + str( download_url[download_url.rfind('/')+1:] )
with open(adr,"wb") as code:
     code.write(data.content)

#解压文件
def unzip(adr):
    #后缀判断
    if(adr[-3:]=='zip'):
        f = zipfile.ZipFile(adr, 'r')
        os.chdir("C:\\Users\\XU\\Desktop")
        #解压所有文件
        for file in f.namelist(): 
            f.extract(file,"temp/")
        f.close()
        fileList = os.listdir( "C:\\Users\\XU\\Desktop\\temp")
        os.chdir("C:\\Users\\XU\\Desktop\\temp")
        #返回文件列表，便于多个文件搜索
        return fileList
    else:
        os.chdir("C:\\Users\\XU\\Desktop\\")
        return [adr,]

def search(fileList,msg):
    #结果保存进list
    ans = []
    #循环每个文件
    for file in fileList:
        with open(file, encoding='utf8', errors='ignore') as file_obj:
            for line in file_obj.readlines():
                #找英语的话，全部小写处理
                line = line.lower()
                #如果找到了，就保存
                if line.find(msg)!= -1:
                    #保存的格式是时间+当前台词
                    ans.append(last_line+line+'\n') #information
                #上一行的时间直接保存在last_line里，具体格式要熟读字幕文件的格式才能看懂哦
                last_line = line
        #多个字幕文件，其中内容相同，但是语言不一样，只要找到了一个，说明不用继续找下去了
        if len(ans)!=0:
            break
    return ans

def write_down(ans):
    with open('ans.txt','w') as f:
        f.writelines(ans)
        f.close()
    print("查找到"+str(len(ans))+'句话，已保存至ans')