Python实现多进程之间共享变量

import multiprocessing

def func(num):
    # 共享数值型变量
    # num.value = 2

    # 共享数组型变量
    num[2] = 9999


if __name__ == '__main__':
    # 共享数值型变量
    # num = multiprocessing.Value('d', 1)
    # print(num.value)

    # 共享数组型变量
    num = multiprocessing.Array('i', [1, 2, 3, 4, 5])
    print(num[:])

    p = multiprocessing.Process(target=func, args=(num,))
    p.start()
    p.join()

    # 共享数值型变量
    # print(num.value)

    # 共享数组型变量
    print(num[:])

from multiprocessing import Pool, Manager

def func(my_list, my_dict):
    my_list.append(10)
    my_list.append(11)
    my_dict['a'] = 1
    my_dict['b'] = 2


if __name__ == '__main__':
    manager = Manager()
    my_list = manager.list()
    my_dict = manager.dict()

    pool = Pool(processes=2)
    for i in range(0, 2):
        pool.apply_async(func, (my_list, my_dict))
    pool.close()
    pool.join()

    print(my_list)
    print(my_dict)

def func(my_list, my_dict):
    my_list = [10, 11]
    my_dict['a'] = 1
    my_dict['b'] = 2