pandas series和pd.Dataframe区别

import  pandas as pd

data = {'Country':['Belgium', 'India', 'Brazil'],
        'Capital':['Brussels', 'New Delhi', 'Brasilia'],
        'Population':[11190846, 1303171035, 207847528]
        }
df=pd.DataFrame(data)
print(df[["Country"]].values)  # <class 'pandas.core.frame.DataFrame'> ,multi divison 
print(df["Country"].values)  # series one divison

#

# pd.Dataframe

[['Belgium']
['India']
['Brazil']]

#series:
['Belgium' 'India' 'Brazil']

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