mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-11-04 11:43:12 +08:00
51 lines
1.6 KiB
HTML
51 lines
1.6 KiB
HTML
<pre>
|
|
DataFrame <code>students</code>
|
|
+-------------+--------+
|
|
| Column Name | Type |
|
|
+-------------+--------+
|
|
| id | int |
|
|
| first | object |
|
|
| last | object |
|
|
| age | int |
|
|
+-------------+--------+
|
|
</pre>
|
|
|
|
<p>编写一个解决方案，按以下方式重命名列：</p>
|
|
|
|
<ul>
|
|
<li><code>id</code> 重命名为 <code>student_id</code></li>
|
|
<li><code>first</code> 重命名为 <code>first_name</code></li>
|
|
<li><code>last</code> 重命名为 <code>last_name</code></li>
|
|
<li><code>age</code> 重命名为 <code>age_in_years</code></li>
|
|
</ul>
|
|
|
|
<p>返回结果格式如下示例所示。</p>
|
|
|
|
<p> </p>
|
|
|
|
<p><strong>示例 1:</strong></p>
|
|
|
|
<pre>
|
|
<strong>输入：
|
|
</strong>+----+---------+----------+-----+
|
|
| id | first | last | age |
|
|
+----+---------+----------+-----+
|
|
| 1 | Mason | King | 6 |
|
|
| 2 | Ava | Wright | 7 |
|
|
| 3 | Taylor | Hall | 16 |
|
|
| 4 | Georgia | Thompson | 18 |
|
|
| 5 | Thomas | Moore | 10 |
|
|
+----+---------+----------+-----+
|
|
<b>输出：</b>
|
|
+------------+------------+-----------+--------------+
|
|
| student_id | first_name | last_name | age_in_years |
|
|
+------------+------------+-----------+--------------+
|
|
| 1 | Mason | King | 6 |
|
|
| 2 | Ava | Wright | 7 |
|
|
| 3 | Taylor | Hall | 16 |
|
|
| 4 | Georgia | Thompson | 18 |
|
|
| 5 | Thomas | Moore | 10 |
|
|
+------------+------------+-----------+--------------+
|
|
<b>解释：</b>
|
|
列名已相应更换。</pre>
|