1 # -*- coding: utf-8 -*- 2 """ 3 Created on Wed Aug 22 15:56:19 2018 4 5 @author: Administrator 6 """ 7 8 # 在python3下测试 9 import requests 10 import threading 11 import datetime 12 13 14 count =0; 15 def Handler(start, end, url, filename): 16 17 #headers = {'Range': 'bytes=%d-%d' % (start, end-1)} 18 #r = requests.get(url, headers=headers, stream=True) 19 for i in filename[start:end]: 20 global count 21 r = requests.get("https://youku.cdn2-youku.com/20180701/12972_72ec5f94/1000k/hls/"+i.replace(" ",""),stream=True) 22 #r = requests.get(url) 23 with open("ts/"+i.replace(" ",""), "wb") as code: 24 code.write(r.content) 25 count =count+1 26 print("下载进度：%.2f" % (count/len(filename))) 27 28 def download_file(url, num_thread = 100): 29 f = open('index.m3u8', 'r', encoding='utf-8') 30 text_list = f.readlines() 31 s_list = [] 32 for i in text_list: 33 if i.find('#EX')==-1: 34 s_list.append(i) 35 36 f.close() 37 file_size = len(s_list) 38 39 # 启动多线程写文件 40 part = file_size // num_thread # 如果不能整除，最后一块应该多几个字节 41 for i in range(num_thread): 42 start = part * i 43 if i == num_thread - 1: # 最后一块 44 end = file_size 45 else: 46 end = start + part 47 48 t = threading.Thread(target=Handler, kwargs={'start': start, 'end': end, 'url': url, 'filename': s_list}) 49 t.setDaemon(True) 50 t.start() 51 52 # 等待所有线程下载完成 53 main_thread = threading.current_thread() 54 for t in threading.enumerate(): 55 if t is main_thread: 56 continue 57 t.join() 58 #print('%s 下载完成' % file_name) 59 60 if __name__ == '__main__': 61 url ="https://youku.cdn2-youku.com/20180701/12972_72ec5f94/1000k/hls/"; 62 start = datetime.datetime.now().replace(microsecond=0) 63 download_file(url) 64 end = datetime.datetime.now().replace(microsecond=0) 65 print("用时: ", end='') 66 print(end-start)