python中进程间通信

进程之间不能像线程那样共享全局变量，所以进程间通信需要使用队列。

#进程间使用Queue通信
import time
import multiprocessing

def work1(q):
    while 1:
        print(q.get())
        time.sleep(1)

def work2(q):
    while 1:
        q.put("11111")
        time.sleep(2)

def main():
    q = multiprocessing.Queue(3)
    w2 = multiprocessing.Process(target = work2,args = (q,))
    w1 = multiprocessing.Process(target = work1,args = (q,))
    w1.start()
    w2.start()
    w1.join()
    w2.join()

if __name__ == "__main__":
    main()