进程池 Pool

import multiprocessing as mp
import threading as td

def job(x):
    return x*x

def multicore():
    pool = mp.Pool(processes = 1)
    res = pool.map(job,range(10000000))
    print(res)
    
if __name__ == '__main__':
    multicore()
    
    #t1 = td.Thread(target=job,args=(1,2))
    #t1.start()
    #t1.join()