python多程序之資料共享Manager

多程序中，各個程序開闢空間，資料是不共享的，如果想讓其資料在各個程序中實現共享，需要借助manager

from multiprocessing import process

from multiprocessing import manager
from multiprocessing import lock
defchange_dic
(dic,lock)
:# lock.acquire() # 互斥鎖上鎖
dic[
"count"]-=
1# print(dic)
# lock.release() # 互斥鎖解鎖
if __name__ ==
"__main__"
: m = manager(
) dic = m.
dict()
lock = lock(
) p_1 =
for i in
range
(100):
# p = process(target=change_dic,args=(dic,))
p = process(target=change_dic,args=
(dic,lock)
) p.start(
)for p in p_1:
p.join(
)print
(dic)

from threading import thread

deftask
(dic)
: dic[
"count"]-=
1print
(dic[
"count"])
if __name__ ==
"__main__"
: dic =
for i in
range(50
):t = thread(target=task,args=
(dic,))
t.start(
)

Python 多程序 共享資料

coding utf 8 from multiprocessing import process,manager import time import random defkkk a list,number for i in range 10 time.sleep random.randrange ...

python多程序共享資料

python的multiprocessing模組提供兩種共享記憶體，sharedctypes與manager，manager效率較低，但支援遠端共享記憶體。sharedctypes效率較高，快manager兩個數量級，在多程序訪問時與普通記憶體訪問相當 共享方式 支援的型別 shared memor...

多程序資料共享

不用程序池的多程序的資料共享from multiprocessing import process,queue queue queue def func a,q re f 我是子程序 我放入data q.put re if name main ls for i in range 10 p proce...