Python3 多任务之---异步

异步

from multiprocessing import Pool
import time
import os
def test():
    print('---进程池中的进程---pid=%d,ppid=%d--'%(os.getpid(),os.getppid()))
    for i in range(3):
        print('----%d----'%i)
        time.sleep(1)
    return 'haha'

def test2(args):
    print('---callback func---pid=%d'%os.getpid())
    print('---callback func---args=%s'%args)

pool = Pool(3)
pool.apply_async(func=test,callback=test2)

while True:
    time.sleep(1)
    print('----主进程--pid=%d----'%os.getpid())