对进程的守护

守护主进程

import time
import multiprocessing
"""
进程.daemon = True   守护主进程
进程.terminate()     在终止主进程之前终止子进程
"""
def work1():
    for i in range(10):
        print("我是work",i)
        time.sleep(0.5)

if __name__ == '__main__':
    # 创建一个进程
    process_obj = multiprocessing.Process(target=work1)
    # 启动进程
    process_obj.daemon = True
    process_obj.start()

    print("woshi XXX")
    # process_obj.close()
    time.sleep(2)
    print("i am over")
    # 在主进程结束之前终止子进程
    process_obj.terminate()
    exit()
    print("XXXX")