python dataframe中行和列之间的公共元素

import pandas as pd

# 创建一个DataFrame
data = {'A': [1, 2, 3], 'B': [4, 5, 6], 'C': [7, 8, 9]}
df = pd.DataFrame(data, index=['a', 'b', 'c'])

# 获取行和列之间的公共元素
common_element = df.loc['b', 'B']
print(common_element)

import pandas as pd

# 创建一个DataFrame
data = {'A': [1, 2, 3], 'B': [4, 5, 6], 'C': [7, 8, 9]}
df = pd.DataFrame(data, index=['a', 'b', 'c'])

# 获取行和列之间的公共元素
common_element = df.iloc[1, 1]
print(common_element)