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pandas 当所有浮点列均为 NaN 时如何删除行

我有以下 df

  AAA BBB CCC DDD  ID1  ID2  ID3  ID4
0 txt txt txt txt  10   NaN  12   NaN
1 txt txt txt txt  10   NaN  12   13
2 txt txt txt txt  NaN  NaN  NaN  NaN
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具有以下 dtypes

AAA          object
BBB          object
CCC          object
DDD          object
ID1          float64
ID2          float64
ID3          float64
ID4          float64
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有没有办法仅当所有浮点列均为 NaN 时才删除行?

输出:

  AAA BBB CCC DDD  ID1  ID2  ID3  ID4
0 txt txt txt txt  10   NaN  12   NaN
1 txt txt txt …
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python dataframe pandas

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