并排检查两个pandas数据框列之间的差异

import pandas as pd

df1 = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
df2 = pd.DataFrame({'A': [1, 2, 4], 'B': [4, 5, 6]})

if df1.equals(df2):
    print("两个数据框相等")
else:
    print("两个数据框存在差异")

import pandas as pd

df1 = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
df2 = pd.DataFrame({'A': [1, 2, 4], 'B': [4, 5, 6]})

diff = df1.compare(df2)
print(diff)

import pandas as pd

df1 = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
df2 = pd.DataFrame({'A': [1, 2, 4], 'B': [4, 5, 6]})

diff = df1['A'] != df2['A']
print(diff)