ThreadPoolExecutor_map

 1 from concurrent.futures import ThreadPoolExecutor
 2 import requests
 3 
 4 URLS = ['http://www.baidu.com', 'http://qq.com', 'http://sina.com']
 5 
 6 
 7 def task(url, timeout=10):
 8     return requests.get(url, timeout=timeout)
 9 
10 
11 pool = ThreadPoolExecutor(max_workers=3)
12 '''
13   map()方法
14   除了submit，Exectuor还为我们提供了map方法，这个方法返回一个map(func, *iterables)迭代器，迭代器中的回调执行返回的结果有序的
15 '''
16 results = pool.map(task, URLS)
17 for result in results:
18     # print('{0},{1}'.format(result.url,len(result.content)))
19     print('%s,%s' % (result.url, len(result.content)))

posted on 2018-08-20 14:17 jovelove 阅读(2005) 评论(0) 收藏举报