# 了解:is_alivefrom multiprocessing import Processimport time, osdef task():print('%s is running,parent id is <%s>' % (os.getpid(), os.getppid()))time.sleep(3)print('%s is done,parent id is <%s>' % (os.getpid(), os.getppid()))if __name__ == '__main__':p = Process(target=task, name='sub——Precsss')p.start()p.terminate() # 结束需要时间,所以time.sleep(3)time.sleep(3)print(p.is_alive())print('主')print(p.name)

