9-[多线程] 进程池线程池

# 进程池，线程池
from concurrent.futures import ProcessPoolExecutor, ThreadPoolExecutor
import os
import time

def task(name):
    print(‘%s is running 《pid: %s》‘ % (name, os.getpid()))
    time.sleep(2)

if __name__ == ‘__main__‘:
    # p = Process(target=task, args=(‘子‘,))
    # p.start

    pool = ProcessPoolExecutor(4)  # 进程池max_workers：4个
    for i in range(10):     # 总共执行10次，每次4个进程的执行
        pool.submit(task, ‘子进程%s‘ % i)

    print(‘主‘)