🌈 搜索
📅  最后修改于: 2022-03-11 14:45:50.148000             🧑  作者: Mango
In [3]: s = pd.Series([1, 3, 5, np.nan, 6, 8]) In [4]: s Out[4]: 0 1.0 1 3.0 2 5.0 3 NaN 4 6.0 5 8.0 dtype: float64