1. map操作
series.map(func)
>>> import pandas as pd
>>> series = pd.Series([1, 2, 3])
>>> series
0 1
1 2
2 3
dtype: int64
>>> series.map(lambda x: x*10)
0 10
1 20
2 30
dtype: int64
series.map(func)
>>> import pandas as pd
>>> series = pd.Series([1, 2, 3])
>>> series
0 1
1 2
2 3
dtype: int64
>>> series.map(lambda x: x*10)
0 10
1 20
2 30
dtype: int64