如何理解python中的iterrows,iteritems,itertuples?

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1.如何理解python中的iterrows,iteritems,itaertuples?

import pandas as pd# 创建一个示例DataFrame
df = pd.DataFrame({'A': [1, 2, 3],'B': [4, 5, 6],'C': [7, 8, 9]
})print(df)for index, row in df.iterrows():print(f"Index: {index}, Row: {row['A']}, {row['B']}, {row['C']}")for label, content in df.iteritems():print(f"Column: {label}, Content: {content.values}")for row in df.itertuples(index=True, name='Pandas'):print(f"Index: {row.Index}, Row: {row.A}, {row.B}, {row.C}")

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