擅长:python、mysql、java
<p>这是解决你问题的办法</p>
<pre><code>import pandas as pd
df = pd.DataFrame(dict(Name=['abc','def','ghi'],NoMatter=['X','X','X']))
df1 = pd.DataFrame(dict(Name=['abc','def','ghi'],Value=[1,2,3]))
new_df=pd.merge(df, df1, on='Name')
new_df
</code></pre>