* 用例1：获取多只股票在特定时间内的分钟数据
```
import dai
df = dai.query("""
SELECT
date, instrument, close,
FROM cn_stock_bar1m_c
ORDER BY date""",
filters={"date": ["2023-12-01 09:25:00","2023-12-01 10:25:00"]}
).df()
```
* 用例2：获取特定股票在特定时间内的分钟数据
```
import dai
df = dai.query("""
SELECT
date, instrument, close
FROM cn_stock_bar1m_c
WHERE instrument = '600519.SH'
ORDER BY date""",
filters={"date": ["2023-12-01 09:30:00","2023-12-01 10:00:00"]}
).df()
```