读文本文件
    :param encoding:
    :param file_name:
    :return:

def read_file(file_name, encoding='utf-8'):
    """
    读文本文件
    :param encoding:
    :param file_name:
    :return:
    """
    with open(file_name, 'rb') as f:
        data = f.read()

    if encoding is not None:
        data = data.decode(encoding)

    return data