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(
)

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