Python3多进程如何传递变量？

from multiprocessing import Process, Queue

queue = Queue()

variable = "Hello, World!"
queue.put(variable)

variable = queue.get()

from multiprocessing import Process, Queue

def child_process(queue):
    variable = queue.get()
    print("Child process received:", variable)

if __name__ == "__main__":
    queue = Queue()
    variable = "Hello, World!"
    queue.put(variable)

    process = Process(target=child_process, args=(queue,))
    process.start()
    process.join()