python多进程编程-死锁和递归锁（二）

import threading

# 创建锁对象
lock1 = threading.Lock()
lock2 = threading.Lock()

def function1():
    # 获取锁1
    lock1.acquire()
    print('Function 1 acquired lock 1')
    # 获取锁2
    lock2.acquire()
    print('Function 1 acquired lock 2')
    # 释放锁2
    lock2.release()
    print('Function 1 released lock 2')
    # 释放锁1
    lock1.release()
    print('Function 1 released lock 1')

def function2():
    # 获取锁1
    lock1.acquire()
    print('Function 2 acquired lock 1')
    # 获取锁2
    lock2.acquire()
    print('Function 2 acquired lock 2')
    # 释放锁2
    lock2.release()
    print('Function 2 released lock 2')
    # 释放锁1
    lock1.release()
    print('Function 2 released lock 1')

# 创建两个线程
thread1 = threading.Thread(target=function1)
thread2 = threading.Thread(target=function2)

# 启动线程
thread1.start()
thread2.start()

# 等待线程结束
thread1.join()
thread2.join()