在底部的Dataframe上插入一行并计算总和

import pandas as pd

data = {'列1': [1, 2, 3],
        '列2': [4, 5, 6]}
df = pd.DataFrame(data)

new_row = {'列1': 7, '列2': 8}

df = df.append(new_row, ignore_index=True)

column_sums = df.sum()

print(df)
print(column_sums)

import pandas as pd

data = {'列1': [1, 2, 3],
        '列2': [4, 5, 6]}
df = pd.DataFrame(data)

new_row = {'列1': 7, '列2': 8}
df = df.append(new_row, ignore_index=True)

column_sums = df.sum()

print(df)
print(column_sums)