【Python】守护进程

# 守护进程随主进程结束而终止, 守护进程不可生成新的子进程
from multiprocessing import Process
import time

def task(name):
    print('%s is runing' % name)
    time.sleep(2)
    print('end')
    # p = Process(target=task, kwargs={'name': 'child2'})
    # AssertionError: daemonic processes are not allowed to have children
    # p.start()

if __name__ == '__main__':
    p = Process(target=task, kwargs={'name':'child'})
    p.daemon = True  # 启动前设定
    p.start()
    p.join()
    print('主')