如何在pandas中迭代列标题和行值？

import pandas as pd

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

# 使用iteritems()方法迭代列标题和行值
for column_name, column_values in df.iteritems():
    print('Column:', column_name)
    for index, value in column_values.iteritems():
        print('Row:', index, 'Value:', value)

Column: A
Row: 0 Value: 1
Row: 1 Value: 2
Row: 2 Value: 3
Column: B
Row: 0 Value: 4
Row: 1 Value: 5
Row: 2 Value: 6
Column: C
Row: 0 Value: 7
Row: 1 Value: 8
Row: 2 Value: 9