from multiprocessing import Process,Value,Arraydef fun(n,a):    n.value = 3.1415927    for i in range(len(a)):        a[i] = -a[i]if __name__ == '__main__':    num = Value('d',0.0)    arr = Array('i',range(10))    p = Process(target=fun,args=(num,arr))    p.start()    p.join()    print(num.value)    print(arr[:])

 

1 from multiprocessing import Process,Manager 2 def fun(d,l): 3     d[1]='1' 4     d[2]=2 5     d[0.25] = None 6     l.reverse() 7  8 if __name__ == '__main__': 9     with Manager() as manager:10         d = manager.dict()11         l = manager.list(range(10))12         p = Process(target=fun,args=(d,l))13         p.start()14         p.join()15         print(d)16         print(l)

 进程池

1 #！/usr/bin/env python 2 # -*- coding:utf-8 -*- 3 from multiprocessing import Pool 4 import time 5  6 def myfun(i): 7     time.sleep(2) 8     return i + 100 9 def end_call(arg):10     print('end_call'+ str(arg))11 if __name__ == '__main__':12     p = Pool(5)13     for i in range(10):14         p.apply_async(func=myfun,args=(i,),callback=end_call)15     print('end')16     p.close()17     p.join()