python/pandas/Index\343\201\214\351\207\215\350\244\207\343\201\227\343\201\246\343\201\204\343\202\213\350\241\214\343\202\222\345\217\226\345\276\227\343\201\231\343\202\213.md
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+参考: [https://stackoverflow.com/a/33381246/11842985](https://stackoverflow.com/a/33381246/11842985)
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+
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+```
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+duplicated_rows = df[df.index.duplicated(keep=False)]
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+duplicated_rows.sort_index()
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+```
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