# 守护线程会在本进程内所有非守护的线程都死掉了才跟着死
# 即：
# 守护线程其实守护的是整个进程的运行周期（进程内所有的非守护线程都运行完毕）
# from threading import Thread,current_thread
# import time
#
#
# def task():
# print('%s is running' % current_thread().name)
# time.sleep(3)
# print('%s is done' % current_thread().name)
#
#
# if __name__ == '__main__':
# t = Thread(target=task,name='守护线程')
# t.daemon=True
# t.start()
# print('主')
from threading import Thread
import time
def foo():
print(123)
time.sleep(3)
print("end123")
def bar():
print(456)
time.sleep(1)
print("end456")
t1=Thread(target=foo)
t2=Thread(target=bar)
t1.daemon=True
t1.start()
t2.start()
print("main-------")
'''
123
456
main-------
end456
'''
