Pipe进程之间的通信

#_author:来童星
#date:2019/12/11
#Pipe
from multiprocessing import Process, Pipe
def f(conn):
    conn.send([42, None, 'hello'])
    conn.close()
if __name__ == '__main__':
    parent_conn, child_conn = Pipe()
    p = Process(target=f, args=(child_conn,))
    p.start()
    print(parent_conn.recv())  #[42, None, 'hello']

    p.join()

运行结果：
[42, None, 'hello']