对进程的守护

 1 import time
 2 import multiprocessing
 3 """
 4 进程.daemon = True   守护主进程
 5 进程.terminate()     在终止主进程之前终止子进程
 6 """
 7 def work1():
 8     for i in range(10):
 9         print("我是work",i)
10         time.sleep(0.5)
11 
12 if __name__ == ‘__main__‘:
13     # 创建一个进程
14     process_obj = multiprocessing.Process(target=work1)
15     # 启动进程
16     process_obj.daemon = True
17     process_obj.start()
18 
19     print("woshi XXX")
20     # process_obj.close()
21     time.sleep(2)
22     print("i am over")
23     # 在主进程结束之前终止子进程
24     process_obj.terminate()
25     exit()
26     print("XXXX")