擅长:python、mysql、java
<p>使用<code>indexing</code>然后使用<a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.drop.html" rel="nofollow noreferrer">^{<cd2>}</a>:</p>
<pre><code>df1 = df[::2].copy()
df.drop(df1.index, inplace=True)
print(df1)
First Last
0 John Adams
2 Sarah Smith
print(df)
First Last
1 Eric Firth
3 Kate Johnson
</code></pre>