python 读取写入二进制文件

python 读取，储存二进制文件

import struck


def load_array(file, big=False):
    """
    从二进制文件中加载二维数组并返回
    :param big:
    :param file:
    :return:
    """
    # print('load binary data from %s' % file)
    f = open(file, 'rb+')
    c = f.read()
    # c = zlib.decompress(c)
    if big:
        data = struct.unpack(('>%df' % (len(c) / 4)), c)
    else:
        data = struct.unpack(('%df' % (len(c) / 4)), c)
    return list(data)

def save_array(array, path):
    """
    将二维浮点数组保存到二进制文件上
    :param array:
    :param file:
    :return:
    """

    dir_name = os.path.split(path)[0]
    data = struct.pack(('%df' % len(array)), *array)

    if not os.path.exists(dir_name):
        os.makedirs(dir_name)

    if os.path.exists(path):
        os.remove(path)

    f = open(path, 'wb+')
    # c = zlib.compress(data)
    f.write(data)
    f.close()