python多线程下载多个文件怎么实现

可以使用Python的threading模块来实现多线程下载多个文件。以下是一个简单的示例代码：

import threading import requests  def download_file(url, filename):     response = requests.get(url)     with open(filename, 'wb') as file:         file.write(response.content)     print(f'Downloaded {filename}')  urls = ['https://example.com/file1.txt', 'https://example.com/file2.txt', 'https://example.com/file3.txt'] filenames = ['file1.txt', 'file2.txt', 'file3.txt']  threads = [] for url, filename in zip(urls, filenames):     thread = threading.Thread(target=download_file, args=(url, filename))     thread.start()     threads.append(thread)  for thread in threads:     thread.join()  print('All files downloaded') 

在这个示例中，我们创建了一个download_file函数来下载文件，然后使用threading.Thread创建多个线程来同时下载多个文件。最后，使用thread.join()来等待所有线程下载完成。