select save_engine , tushare ts Tushare 使用 Tushare 免费数据接口， tdx 使用通达信数据接口
    :param engine: 字符串Str
    :param paralleled: 是否并行处理；默认为False
    :return: sts means save_tushare_py  or stdx means save_tdx_py

def select_save_engine(engine, paralleled=False):
    '''
    select save_engine , tushare ts Tushare 使用 Tushare 免费数据接口， tdx 使用通达信数据接口
    :param engine: 字符串Str
    :param paralleled: 是否并行处理；默认为False
    :return: sts means save_tushare_py  or stdx means save_tdx_py
    '''
    if engine in ['tushare', 'ts', 'Tushare']:
        return sts
    elif engine in ['tdx']:
        if paralleled:
            return stdx_parallelism
        else:
            return stdx
    elif engine in ['gm', 'goldenminer']:
        return sgm
    elif engine in ['jq', 'joinquant']:
        return sjq
    else:
        print('QA Error QASU.main.py call select_save_engine with parameter %s is None of  thshare, ts, Thshare, or tdx', engine)