pandas官方文档:https://pandas.pydata.org/docs/
python dataframe根据列号取出列pandas数据框获取行数列数pandas判断数据框是否相等 添加新列:https://www.geeksforgeeks.org/adding-new-column-to-existing-dataframe-in-pandas/
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pandas官方文档:https://pandas.pydata.org/docs/
python dataframe根据列号取出列pandas数据框获取行数列数pandas判断数据框是否相等 添加新列:https://www.geeksforgeeks.org/adding-new-column-to-existing-dataframe-in-pandas/
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