def QA_fetch_index_list_adv(collections=DATABASE.index_list):
    '''
    '获取股票列表'
    :param collections: mongodb 数据库
    :return: DataFrame
    '''
    index_list_items = QA_fetch_index_list(collections)
    if len(index_list_items) == 0:
        print("QA Error QA_fetch_index_list_adv call item for item in collections.find() return 0 item, maybe the DATABASE.index_list is empty!")
        return None
    return index_list_items
def QA_fetch_index_list_adv ( collections = DATABASE . index_list ) : index_list_items = QA_fetch_index_list ( collections ) if len ( index_list_items ) == 0 : print ( "QA Error QA_fetch_index_list_adv call item for item in collections.find() return 0 item, maybe the DATABASE.index_list is empty!" ) return None return index_list_items
'获取股票列表'
    :param collections: mongodb 数据库
    :return: DataFrame