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