1 #coding=utf8
2
3 import threading
4 import time
5 import logging
6
7 logging.basicConfig(
8 level=logging.DEBUG,
9 format='[%(levelname)s]-(%(threadName)s)-%(message)s',
10 )
11
12 def worker():
13 logging.debug('starting')
14 #print 'I am worker:'
15 time.sleep(2)
16 logging.debug('ending')
17
18
19 def my_service():
20 logging.debug('starting')
21 #print 'I am service:'
22 time.sleep(1)
23 logging.debug('ending')
24
25 t = threading.Thread(name='worker-by leon',target=worker)
26 t.setDaemon(True) #False阻塞主进程，True不阻塞
27 t.start()
28 t.join(3) #等待守护线程退出,join的时间大于线程睡眠时间，所以isAlive()的值为False
29
30
31 d = threading.Thread(name='service-by leon', target=my_service)
32 d.setDaemon(True)
33 d.start()
34
35 logging.debug(t.isAlive())
36 d.join()
37 #不显示ending因为worker守护线程结束之前，主线程或其他线程已经退出
38 '''
39 显示
40 [DEBUG]-(worker-by leon)-starting
41 [DEBUG]-(worker-by leon)-ending
42 [DEBUG]-(MainThread)-False
43 [DEBUG]-(service-by leon)-starting
44 [DEBUG]-(service-by leon)-ending
45 '''
