python-进程通过队列模拟数据的下载

import multiprocessing


def download_date(q):
    ''' 下载数据 '''
    # 模拟从网上下载数据
    data = [11, 22, 33, 44]

    # 向队列中写入数据
    for temp in data:
        q.put(temp)

    print('---已经下载完毕--')


def analysis_data(q):
    '''数据处理'''
    waitting_data = list()
    # 从队列中获取数据
    while True:
        data = q.get()
        waitting_data.append(data)

        if q.empty():
            break

    # 模拟数据出路
    print(waitting_data)


def main():
    # 1. 创建一个队列
    q = multiprocessing.Queue()

    download_process = multiprocessing.Process(target=download_date, args=(q,))
    analysis_process = multiprocessing.Process(target=analysis_data, args=(q,))
    download_process.start()
    analysis_process.start()


if __name__ == '__main__':
    main()