python線程鎖

標籤：nal   pytho   擷取   pre   簡單   imp   import   release   lease   

import time,threadingbalance = 0lock = threading.Lock()def change_it(n):    global balance    balance = balance + n    balance = balance - ndef run_thread(n):    for i in range(1000000):        #先擷取鎖        lock.acquire()        try:            change_it(n)        finally:            #改完了一定要釋放鎖            lock.release()t1 = threading.Thread(target=run_thread,args=(5,))t2 = threading.Thread(target=run_thread,args=(8,))t1.start()t2.start()t1.join()t2.join()print(balance)

線程鎖的簡單實現。

python線程鎖