#coding:utf-8
from multiprocessing import Process, Queue
import os,time,random
#通过队列进行进程通信

#写数据
def write(q):
    print('Process to write (%s)' % os.getpid())
    for value in ['A', 'B', 'C']:
        print('put %s to queue...' % value)
        q.put(value)
        time.sleep(random.random())

#读数据
def read(q):
    print('Process to read (%s)' % os.getpid())
    while True:
        value = q.get(True)
        print('Get %s from queue' % value)

if __name__ == '__main__':
    # 父进程创建Queue，并传递给子进程
    q = Queue()
    pw = Process(target = write, args = (q,))

    #启动子进程pw,写入:
    pw.start()
    #等待pw结束
    pw.join()

    pr = Process(target = read, args = (q,))
    #启动子进程pr,读取:
    pr.start()
    #pr进程是死循环,无法等待结束，只能强制终止
    pr.terminate()

运行结果：

Process to write (29287)
put A to queue...
put B to queue...
put C to queue...