python - 如何让两个不同的函数并行运行并在Python中返回一个数组

Question

所以我必须编写一个程序，通过文件夹中包含的文件搜索关键字并打印该关键字在其中使用的次数。为了减少搜索时间，我决定将文件夹分成 2 个文件夹，并让两个单独的函数并行运行，每个函数搜索不同的文件夹。

这是搜索文件的两个函数之一(另一个相同):

    pathText1 = '/Papers/scripts1'
    countmatch1 = 0;
    matrix1 = [[]]
    for filename1 in os.listdir(pathText1):
        fileDir1 = pathText1 + '/' + filename1
        fileText1 = open(fileDir1, "r",encoding='utf8')
        content1 = fileText.read()
        content1 = content1.lower()
        countn1 = content1.count(keyword)
        if count1 > 5:
            print ('The word:   ' + keyword + '    | was found ' + str(count1) + ' times in the file: ' + filename1)
            countmatch1 = countmatch1 + 1
            matrix1.append([filename1,count1])

    print('found ' + countmatch1 + ' matches')
    del matrix1[0]
    return matrix1

所以，现在我有一个问题，如何实现多处理并使其有两个函数将矩阵返回到主函数。预先感谢您的帮助!

Answer 1

您应该使用共享变量。检查示例:

from multiprocessing import Process, Manager

def your_function(first_param, second_param):
    # Your work here to search keywords

if __name__ == '__main__':
    manager = Manager()

    # shared variable
    matrices = manager.list()

    jobs = []

    # Range defines how many times you want to call the method.
    for each_process in range(3):
        process = Process(target=your_function, args=(first_param, second_param))
        jobs.append(process)
        process.start()

    for each_process in jobs:
        each_process.join()

    print(matrices)

另外，更详细的教程可以查看here .