Pandas 排序以後索引問題

In [1]: import pandas as pd ...: df=pd.DataFrame({"a":[1,2,3,4,5],"b":[5,4,3,2,1]}) In [2]: df Out[2]: a b 0 1 5 1 2 4 2 3 3 3 4 2 4 5 1 In [3]: df=df.sort_values(by="b") # 按照b列排序

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