守护线程

import threading,timedef down_load():   time.sleep(5)   print("运行完了")for i in range(10):   t = threading.Thread(target=down_load)   t.setDaemon(True)#设置子线程为守护线程   t.start()print('over')#主线程结束，守护线程立马死掉

来源：https://www.cnblogs.com/lapt/p/11893285.html