Pandas Dataframe:如何检查列是否包含连续整数，如果不包含，如何添加和填充0

import pandas as pd
import numpy as np

df = pd.DataFrame({'A': [1, 2, 3, 4, 5],
                   'B': [2, 3, 4, 5, 6],
                   'C': [1, 3, 5, 7, 9]})

diff_df = pd.DataFrame(np.diff(df, axis=0), columns=df.columns[1:])

is_continuous = np.all(diff_df == 0)

if not is_continuous:
    df['D'] = df.loc[:, 'B'].fillna(0)

import pandas as pd
import numpy as np

df = pd.DataFrame({'A': [1, 2, 3, 4, 5],
                   'B': [2, 3, 4, 5, 6],
                   'C': [1, 3, 5, 7, 9]})

diff_df = pd.DataFrame(np.diff(df, axis=0), columns=df.columns[1:])
is_continuous = np.all(diff_df == 0)

if not is_continuous:
    df['D'] = df.loc[:, 'B'].fillna(0)