列出/显示/显示来自pandas dataframe的列名和列号？

import pandas as pd

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

# 获取列名列表
column_names = df.columns.tolist()
print("列名列表:", column_names)

# 获取列号列表
column_numbers = df.columns.tolist()
print("列号列表:", column_numbers)

import pandas as pd

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

# 遍历列名和列号
for name, number in df.iteritems():
    print("列名:", name)
    print("列号:", number)