python 管道

#- * -coding: utf - 8 - * -
from multiprocessing import Process, Pipe

def f(conn):
    conn.send([42, None, ‘hello‘])
    while True:
        print(conn.recv())

if __name__ == ‘__main__‘:
    parent_conn, child_conn = Pipe()
    p = Process(target = f, args = (child_conn, ))
    p.start()
    print(parent_conn.recv())# prints "[42, None, ‘hello‘]"
    parent_conn.send(‘666‘)
    p.terminate()

[42, None, ‘hello‘]