查看 DataFrame 的索引

import pandas as pd

# 创建示例 DataFrame
data = {
    'A': [1, 2, 3],
    'B': ['a', 'b', 'c']
}
df = pd.DataFrame(data, index=['row1', 'row2', 'row3'])

# 查看 DataFrame 的索引
index_labels = df.index
print(index_labels)