python实现悲观锁

[python]代码库

# 定义一个全局变量
lock = threading.Lock()


# 定义一个函数，用于模拟悲观锁
def pessimistic_lock():
    # 获取锁
    lock.acquire()
    try:
        # 执行操作
        print("Do something")
    finally:
        # 释放锁
        lock.release()


# 调用函数
pessimistic_lock()