import threading
from concurrent import futures
import logging
import time
FORMAT = '%(processName)s %(threadName)s %(process)d %(thread)d %(message)s'
logging.basicConfig(level=logging.INFO, format=FORMAT)
def worker(n):
logging.info('begin to work{}'.format(n))
time.sleep(5)
logging.info('finished {}'.format(n))
executor = futures.ThreadPoolExecutor(max_workers=3)
fs = []
for i in range(3):
future = executor.submit(worker, i)
fs.append(future)
for i in range(3, 6):
future = executor.submit(worker, i)
fs.append(future)
while True:
time.sleep(2)
logging.info(threading.enumerate())
flag = True
for f in fs:
logging.info(f.done)
flag = flag and f.done()
if flag:
executor.shutdown() # 清理池
logging.info(threading.enumerate())
break
# 如果想改成进程，只需要将 ThreadPoolExecutor 改成 ProcessPoolExecutor
# 但是注意，一定要写在 __name__ == '__main__' 代码块下免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
