Python 练习 进程

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"""
创建2个进程, 每一个进程都打出当前的时间和进程的标识,持续打十次.
"""
import multiprocessing as mul
from datetime import datetime
import time

def worker(id):
    for i in range(10):
        now = datetime.now()
        print('proc #%s %s' % (id, now), flush=True)

if __name__ == '__main__':
    procs = []

    # 创建进程,并把进程对象保存起来
    for i in range(2):
        p = mul.Process(target=worker, args=(i,))
        p.start()
        procs.append(p)

    # 用join方法等待进程结束
    for p in procs:
        p.join()

time.sleep(3)