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            Article / 文章中心

            Python編程:threading多線程之ThreadLocal

            發(fā)布時間:2021-11-23 點擊數(shù):626

            一個ThreadLocal變量雖然是全局變量,但每個線程都只能讀寫自己線程的獨立副本,互不干擾。ThreadLocal解決了參數(shù)在一個線程中各個函數(shù)之間互相傳遞的問題。

            代碼示例

            # -*- coding: utf-8 -*-  # @File    : thread_local_demo.py # @Date    : 2018-06-11 # @Author  : Peng Shiyu  import threading  # 創(chuàng)建全局ThreadLocal對象 local_dict = threading.local()  def process_item():  # 獲取當(dāng)前線程關(guān)聯(lián)的name  name = local_dict.name  print("thread: %s  name: %s"% (threading.current_thread().name, name))  def process_thread(name):  # 綁定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 """