遞歸鎖

from threading import Thread,RLock
import timemutexA=mutexB=RLock()

#一個線程拿到鎖，counter加1,該線程內又碰到加鎖的情況，則counter繼續加1，
 #這期間所有其他線程都只能等待，等待該線程釋放所有鎖，即counter遞減到0為止class MyThread(Thread):def run(self):self.func1()self.func2()def func1(self):mutexA.acquire()print('\033[41m%s 拿到A鎖\033[0m' %self.name)mutexB.acquire()print('\033[42m%s 拿到B鎖\033[0m' %self.name)mutexB.release()mutexA.release()def func2(self):mutexB.acquire()print('\033[43m%s 拿到B鎖\033[0m' %self.name)time.sleep(2)mutexA.acquire()print('\033[44m%s 拿到A鎖\033[0m' %self.name)mutexA.release()mutexB.release()if __name__ == '__main__':for i in range(10):t=MyThread()t.start()

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