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excel的这种数据的结构，如何做成字典表插入到如图数据库中的表中？

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excel的这种数据的结构，如何做成字典表插入到如图数据库中的表中？

一共分了3级，不同的上级有可能有重复的下级

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与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
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