一个ThreadLocal变量虽然是全局变量，但每个线程都只能读写自己线程的独立副本，互不干扰。ThreadLocal解决了参数在一个线程中各个函数之间互相传递的问题。

代码示例

# -*- coding: utf-8 -*-

# @File : thread_local_demo.py
# @Date : 2018-06-11
# @Author  : Peng Shiyu

import threading

# 创建全局ThreadLocal对象
local_dict = threading.local()

def process_item(): # 获取当前线程关联的name name = local_dict.name print("thread: %s  name: %s"% (threading.current_thread().name, name))

def process_thread(name): # 绑定ThreadLocal的name local_dict.name = name process_item()

t1 = threading.Thread(target=process_thread, args=("Tom",), name="Thread-Tom")
t2 = threading.Thread(target=process_thread, args=("Jack",), name="Thread-Jack")

t1.start()
t2.start()

t1.join()
t2.join()
"""
thread: Thread-Tom  name: Tom
thread: Thread-Jack  name: Jack
"""

  
 

  
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参考：
廖雪峰Python教程-ThreadLocal

文章来源: pengshiyu.blog.csdn.net，作者：彭世瑜，版权归原作者所有，如需转载，请联系作者。

原文链接：pengshiyu.blog.csdn.net/article/details/80654414