#!/usr/bin/env python
# Author:Zhangmingda
import queue,threading
from multiprocessing import Process,Queue
def f(q):
    q.put([234,None,‘Hello‘])
if __name__ == ‘__main__‘:
    q = queue.Queue() #使用線程隊列運行報錯TypeError: can‘t pickle _thread.lock objects
    p = Process(target=f,args=(q,)) #啟動一個子進程
    #
 
 p = threading.Thread(target=f,) #啟動線程直接共享主進程內存
    p.start()
    print(q.get())
    p.join()

C:\Users\Administrator\Desktop\Python3_study\venv\Scripts\python.exe C:/Users/Administrator/Desktop/Python3_study/day10/進程間通信？.py
Traceback (most recent call last):
  File "C:/Users/Administrator/Desktop/Python3_study/day10/進程間通信？.py
 
", line 13, in <module>
    p.start()
  File "C:\Program Files\Python36\lib\multiprocessing\process.py", line 105, in start
    self._popen = self._Popen(self)
  File "C:\Program Files\Python36\lib\multiprocessing\context.py", line 223, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File 
 
"C:\Program Files\Python36\lib\multiprocessing\context.py", line 322, in _Popen
    return Popen(process_obj)
  File "C:\Program Files\Python36\lib\multiprocessing\popen_spawn_win32.py", line 65, in __init__
    reduction.dump(process_obj, to_child)
  File "C:\Program Files\Python36\lib\multiprocessing\reduction.py", line 60, in dump
    ForkingPickler(file, protocol).dump(obj)
TypeError: can‘t pickle _thread.lock objects

#!/usr/bin/env python
# Author:Zhangmingda
import queue,threading
from multiprocessing import Process,Queue
def f(q):
    q.put([234,None,‘Hello‘])
if __name__ == ‘__main__‘:
    # q = queue.Queue() #使用線程隊列運行報錯TypeError: can‘t pickle _thread.lock objects
    q = Queue() #進程隊列
    p = Process(target=f,args=(q,)) #啟動一個子進程
    # p = threading.Thread(target=f,) #啟動線程直接共享主進程內存
    p.start()
    print(q.get())
    p.join()

進程間通訊原理：本例中等於將父進程中的q克隆了一份給子進程，子進程進行了序列化，在子進程中執行後又反序列化給父進程。所以在父進程中能夠得到子進程對父進程中數據的修改結果。

C:\Users\Administrator\Desktop\Python3_study\venv\Scripts\python.exe C:/Users/Administrator/Desktop/Python3_study/day10/進程間通信？.py
[234, None, ‘Hello‘]

Process finished with exit code 0

多進程進程間通訊multiprocessing