from multiprocessing import Manager,Process
def main(dic):
dic['count'] -= 1
print(dic)
if __name__ == '__main__':
m = Manager()
dic = m.dict({'count':100})
p_dict = []
p = Process(target=main,args=(dic,))
p.start()
p.join()
print('主进程：',dic)
from multiprocessing import Manager,Process
def main(dic):
dic['count'] -= 1
if __name__ == '__main__':
m = Manager()
dic = m.dict({'count':100})
p_lst = []
for i in range(50):
p = Process(target=main,args=(dic,))
p.start()
p_lst.append(p)
for p in p_lst: p.join()
print('主进程：',dic)
from multiprocessing import Manager,Process,Lock
def main(dic,lock):
lock.acquire()
dic['count'] -= 1
lock.release()
if __name__ == '__main__':
m = Manager()
lock = Lock()
dic = m.dict({'count':100})
p_lst = []
for i in range(50):
p = Process(target=main,args=(dic,lock))
p.start()
p_lst.append(p)
for p in p_lst: p.join()
print('主进程：',dic)
