python使用Queue在多个子进程间交换数据的方法

from multiprocessing import Process, Queue
def f(q):
  q.put([42, None, 'hello'])
if __name__ == '__main__':
  q = Queue()
  p = Process(target=f, args=(q,))
  p.start()
  print q.get() # prints "[42, None, 'hello']"
  p.join()