python 多进程简

#!/usr/bin/env python#-*- coding:utf-8 -*-# author:leo# datetime:2019/5/28 10:03# software: PyCharmfrom multiprocessing import Processimport timeimport osdef going(n):    print("this is process %s"% (n,))    print(os.getpid())#获取进程的id    print(os.getppid())#获取父进程的id    time.sleep(2)if __name__=="__main__":    for i in range(5):        p=Process(target=going,args=(i,))        p.start()        #p.join()