线程之互斥锁

from threading import Thread, Lock
import time
n = 100
def task():
 global n
 mutex.acquire() #互斥锁枷锁
 temp = n
 time.sleep(0.0001)
 n = temp - 1
 mutex.release() #互斥锁解锁
if __name__ == '__main__':
 mutex = Lock()
 t_l = list()
 for i in range(100):
 t = Thread(target=task)
 t_l.append(t)
 t.start()
 for t in t_l:
 t.join()
 print('主', n)