擅长:python、mysql、java
<p>我相信您需要<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.dropna.html" rel="nofollow noreferrer">^{<cd1>}</a>来只删除<code>NaN</code>的<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.combine_first.html" rel="nofollow noreferrer">^{<cd3>}</a>行:</p>
<pre><code>df1= pd.read_csv('example1.csv')
df2= pd.read_csv('example2.csv')
df1 = df1.set_index('codigoEspecificoProducto').dropna(how='all')
df2 = df2.set_index('codigoEspecificoProducto').dropna(how='all')
df = df1.combine_first(df2)
</code></pre>