python线程池pool.map的使用

import requests
import time
from multiprocessing.dummy import Pool

headers = {
   
    'user-agent' : 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36'
}

urls = [
    'https://sp1.baidu.com/',
    'https://sp1.baidu.com/',
 

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