python线程池/进程池创建

进程池

import time

from concurrent.futures import ProcessPoolExecutor

def task(arg):

    time.sleep(2)

    print(arg)

if __name__ == '__main__':

    pool = ProcessPoolExecutor(5)

    for i in range(20):

        pool.submit(task, i)

线程池

import time

from concurrent.futures import ThreadPoolExecutor

def task(arg):

    time.sleep(2)

    print(arg)

if __name__ == '__main__':

    pool = ThreadPoolExecutor(5)

    for i in range(20):

        pool.submit(task, i)