线程全局TLS

import time
import threading
import os

local = threading.local()

def func(n):
    local.val = n
    for i in range(100):
        local.val += 2
    print('我是线程:%s  值为：%s' % (threading.currentThread().ident, local.val))

def hhh():
    for i in range(5):
        t = threading.Thread(target=func,args=(i,))
        t.start()
hhh()

执行结果