Day20 作业
2019-08-19 本文已影响0人
风月辞寒
使用锁
"""______lxh______"""
from threading import Thread, Lock
from time import sleep
list1 = [1, 2, 3]
lock = Lock()
def func1():
lock.acquire()
global list1
list2 = list1[:]
sleep(3)
list2.append(100)
list1 = list2
lock.release()
def func2():
lock.acquire()
global list1
list2 = list1[:]
sleep(3)
list2.remove(2)
list1 = list2
lock.release()
t1 = Thread(target=func1)
t2 = Thread(target=func2)
t1.start()
t2.start()
t1.join()
t2.join()
print(list1)
