本人正在学习python，想用python开发个股票软件，导入tushare\pandas\ta-lib包，运行例子,报错，如下：

File "D:\Python\Python38\test.py", line 1, in
    import tushare as ta
  File "D:\Python\Python38\lib\site-packages\tushare\__init__.py", line 11, in
    from tushare.stock.trading import (get_hist_data, get_tick_data,
  File "D:\Python\Python38\lib\site-packages\tushare\stock\trading.py", line 15, in
    import pandas as pd
  File "D:\Python\Python38\lib\site-packages\pandas\__init__.py", line 55, in
    from pandas.core.api import (
  File "D:\Python\Python38\lib\site-packages\pandas\core\api.py", line 29, in
    from pandas.core.groupby import Grouper, NamedAgg
  File "D:\Python\Python38\lib\site-packages\pandas\core\groupby\__init__.py", line 1, in
    from pandas.core.groupby.generic import DataFrameGroupBy, NamedAgg, SeriesGroupBy
  File "D:\Python\Python38\lib\site-packages\pandas\core\groupby\generic.py", line 60, in
    from pandas.core.frame import DataFrame
  File "D:\Python\Python38\lib\site-packages\pandas\core\frame.py", line 124, in
    from pandas.core.series import Series
  File "D:\Python\Python38\lib\site-packages\pandas\core\series.py", line 4572, in
    Series._add_series_or_dataframe_operations()
  File "D:\Python\Python38\lib\site-packages\pandas\core\generic.py", line 10349, in _add_series_or_dataframe_operations
    from pandas.core.window import EWM, Expanding, Rolling, Window
  File "D:\Python\Python38\lib\site-packages\pandas\core\window\__init__.py", line 1, in
    from pandas.core.window.ewm import EWM  # noqa:F401
  File "D:\Python\Python38\lib\site-packages\pandas\core\window\ewm.py", line 5, in
    import pandas._libs.window.aggregations as window_aggregations
ImportError: DLL load failed while importing aggregations: 找不到指定的模块。