Python多进程间同步互斥方法lock

1、from multiprocessing import Lock创建 进程锁对象lock = Lock()相关方法：lock.acquire() 给临界区上锁lock.release() 给临界区解锁说明：具体实现上 acquire() 为一个条件阻塞函数，当有任意一个进程先进行了acquire操作后，其他进程再企图进行acquire操作时就会阻塞，直到lock对象被 release 后其他进程才可进行下次acquire操作

2、具体示例：from multiprocessing import Process,Lockimport time荑樊综鲶,sysdef worker1(stream): lock.acquire() # 加锁 for i in range(5): time.sleep(1) stream.write("Lock acquired via\n") lock.release()#解锁def worker2(stream): # lock.acquire() with lock: #加锁　语句块结束即解锁 for i in range(5): time.sleep(1) stream.write("Lock acquired directly\n") # lock.release()lock = Lock()#sys.stdout为所有进程都拥有的资源w1 = Process(target=worker1,args=(sys.stdout,))w2 = Process(target=worker2,args=(sys.stdout,))w1.start()w2.start()w1.join()w2.join()