python 线程锁

python 互斥锁

from threading import Lock, Thread
from time import sleep

# 生成一把锁
mutex = Lock()

money = 100


def fn():
　　# 这里涉及到全局数据共享, 需要开始加锁
    mutex.acquire()
    global money
    temp = money
    sleep(0.1)
    money = temp - 1
    print(money)
　　# 这里释放锁
    mutex.release()


if __name__ == "__main__":
    thread_arr = []
    for i in range(10):
        t = Thread(target=fn)
        t.start()
        thread_arr.append(t)

    for i in thread_arr:
        i.join()

    print(f"最终计算结果{money}")