获取多只股票历史上某一时间段的因子数据（专业版）

获取多只股票历史上某一时间段的因子数据（专业版）。股票因子分三个时间段生产，分别是T日17点00分、T日21点30分和T+1日04点00分生产完成。如果调用的因子中包含还未生产完成的因子会导致所有因子都不会返回。具体每个因子的生产时间在文档中有标注，请在调用因子时确认清楚。

Obtain factor data for multiple stocks over a specified historical time period (Professional Edition). Stock factor data is generated and finalized in three batches: 17:00 on day T, 21:30 on day T, and 04:00 on day T+1. If any of the requested factors have not yet been finalized, none of the requested factors will be returned. The specific generation completion time for each individual factor is marked in the documentation; please confirm the relevant timing before invoking the factor API.