AAAAAAABBgg的博客

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1.数据类型——二维数组（索引+属性） 2.创建dataframe (1)二维数组创建 import pandas as pd df=pd.DataFrame([[1,2,3],[4,5,6]],index=['a','b'],columns=['f','h','g']) print(df) [out] f h g a 1 2 3 b 4 5 6 index——指定行索引的名称 columns——指定列索引的名称 （2）通过字典创建 dm=pd.DataFrame..