# 遞歸鎖:就是一把鎖中還有一把小鎖，比如學校的大門口有一個大鎖，學校里的 #每個教室也有一把小鎖,以后所有的鎖都用rlock就可以了，不要用lock，尤其是多層鎖的時候，必須要用遞歸鎖 import threading import timedef run1():print("grab the first part data")lock.acquire()global num1num1 += 1lock.release()return num1def run2():print("grab the second part data")lock.acquire()global num2num2 += 1lock.release()return num2def run3():lock.acquire()res1 = run1()print("--------between run1 and run2-------")res2 = run2()lock.release()print("函數run1--->",res1,"函數run2--->",res2)if __name__ == '__main__':num1 = 0num2 = 0lock = threading.RLock()for i in range(5):t = threading.Thread(target=run3)t.start()while threading.active_count() != 1:print("剩余的線程數;[%s]" %threading.active_count()) else:print("all thread is down")print(num1,num2)

　　

轉載于:https://www.cnblogs.com/bainianminguo/p/7253925.html

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