将np.datetime64的时间差转为秒

print(
    (np.datetime64('2023-01-02 00:00:00') - np.datetime64('2023-01-01 00:00:00')) / np.timedelta64(1, 's'),
    (pd.Series(np.datetime64('2023-01-02 00:00:00')) - pd.Series(np.datetime64('2023-01-01 00:00:00'))) / np.timedelta64(1, 's'),
    (pd.Series(np.datetime64('2023-01-02 00:00:00')) - pd.Series(np.datetime64('2023-01-01 00:00:00'))).dt.total_seconds(),
    sep='\n\n'

)