Discuss / Python / 为什么我的只写不读???

为什么我的只写不读???

Topic source

GOGOGO-枼子

#1 Created at ... [Delete] [Delete and Lock User]

from multiprocessing import Process, Queue import os, time, random

#写数据进程执行的代码

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())

#读数据进程执行的代码

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,并传给各个子进程
q = Queue()
pw = Process(target=write, args=(q,))
pr = Process(target=read, args=(q,))
#启动子进程pw,写入:
pw.start()
#启动子进程pr,读取:
pr.start()
#等待pw结束:
pw.join()
#pr进程里是死循环,无法等其结束,只能强行终止:
pr.terminate()

我的结果: Process to write: 9804 Put A to queue... Put B to queue... Put C to queue...

Repl Closed


  • 1

Reply