守护线程 与守护进程

守护线程:守护线程会等待所有非守护线程运行结束才结束

守护进程:无论子进程有没有运行结束,当主程序的代码执行完毕,都会结束

def f1():
    time.sleep(2)
    print('1号线程')

def f2():
    time.sleep(3)
    print('2号线程')
if __name__ == '__main__':
    t1 = Thread(target=f1,)
    t2 = Thread(target=f2,)
    t1.daemon = True
    t1.start()
    t2.start()
　　　#下面是进程的代码
    # print('主线程结束')
    # t1 = Process(target=f1, )
    # t2 = Process(target=f2, )
    # t1.daemon = True
    # # t2.daemon = True
    # t1.start()
    # t2.start()

    print('主进程结束')