摘要:
import pandas as pddf=pd.DataFrame({ "a":[1,2,3], "b":[4,5,6], "c":[7,8,9]}) a b c0 1 2 31 4 5 62 7 8 9df1=df['a'] #<class 'pandas.core.series.Series' 阅读全文
posted @ 2018-10-15 17:24
happygril3
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