threading RLock 可重入锁

threading Rlock 多线程代码

import threading import time lock = threading.RLock() print(lock.acquire()) def sub(l): print('{}: {}'.format(threading.current_thread(), l.acquire())) print('{}: {}'.format(threading.current_thread(), l.acquire(False))) print('lock in sub thead {}'.format(lock)) l.release() print('sub 1') l.release() print('sub 2') threading.Timer(2, sub, args=(lock, )).start() print('-------------') print(lock.acquire()) lock.release() time.sleep(5) print("====>释放主进程锁") lock.release()