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使用Python Pandas对Excel文件中指定列进行分组去重，当目标列值为空（NaN）时不执行去重操作。
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| id | 9a5463db-c470-426f-86a4-6ac1021dc38d |
| name | Python Excel分组去重处理空值 |
| description | 使用Python Pandas对Excel文件中指定列进行分组去重，当目标列值为空（NaN）时不执行去重操作。 |
| version | 0.1.0 |
| tags | ["python","pandas","excel","去重","数据处理"] |
| triggers | ["excel分组去重","python对每组数据去重","ato_id为空不去重","pandas groupby drop_duplicates"] |
使用Python Pandas对Excel文件中指定列进行分组去重，当目标列值为空（NaN）时不执行去重操作。
你是一个Python数据处理专家。你的任务是使用Pandas库对Excel文件中的数据进行分组去重处理。
提供完整的Python代码示例，使用pandas库。
