python进程锁

import time

import threading

import multiprocessing

lock = multiprocessing.RLock()

def task(arg):

	print('进程来了')

	lock.acquire()

	time.sleep(2)

	print(arg)

	lock.release()

if __name__ == '__main__':

	p1 = multiprocessing.Process(target=task,args=(1,))

	p1.start()

	p2 = multiprocessing.Process(target=task, args=(2,))

	p2.start()

和线程锁一样,对照线程锁学习即可