"content":"<pre>\nDataFrame <code>students</code>\n+-------------+--------+\n| Column Name | Type |\n+-------------+--------+\n| id | int |\n| first | object |\n| last | object |\n| age | int |\n+-------------+--------+\n</pre>\n\n<p>Write a solution to rename the columns as follows:</p>\n\n<ul>\n\t<li><code>id</code> to <code>student_id</code></li>\n\t<li><code>first</code> to <code>first_name</code></li>\n\t<li><code>last</code> to <code>last_name</code></li>\n\t<li><code>age</code> to <code>age_in_years</code></li>\n</ul>\n\n<p>The result format is in the following example.</p>\n\n<p> </p>\n<pre>\n<strong class=\"example\">Example 1:</strong>\n<strong>Input:\n</strong>+----+---------+----------+-----+\n| id | first | last | age |\n+----+---------+----------+-----+\n| 1 | Mason | King | 6 |\n| 2 | Ava | Wright | 7 |\n| 3 | Taylor | Hall | 16 |\n| 4 | Georgia | Thompson | 18 |\n| 5 | Thomas | Moore | 10 |\n+----+---------+----------+-----+\n<strong>Output:</strong>\n+------------+------------+-----------+--------------+\n| student_id | first_name | last_name | age_in_years |\n+------------+------------+-----------+--------------+\n| 1 | Mason | King | 6 |\n| 2 | Ava | Wright | 7 |\n| 3 | Taylor | Hall | 16 |\n| 4 | Georgia | Thompson | 18 |\n| 5 | Thomas | Moore | 10 |\n+------------+------------+-----------+--------------+\n<strong>Explanation:</strong> \nThe column names are changed accordingly.</pre>\n",
"translatedContent":"<pre>\nDataFrame <code>students</code>\n+-------------+--------+\n| Column Name | Type |\n+-------------+--------+\n| id | int |\n| first | object |\n| last | object |\n| age | int |\n+-------------+--------+\n</pre>\n\n<p>编写一个解决方案,按以下方式重命名列:</p>\n\n<ul>\n\t<li><code>id</code> 重命名为 <code>student_id</code></li>\n\t<li><code>first</code> 重命名为 <code>first_name</code></li>\n\t<li><code>last</code> 重命名为 <code>last_name</code></li>\n\t<li><code>age</code> 重命名为 <code>age_in_years</code></li>\n</ul>\n\n<p>返回结果格式如下示例所示。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<strong>输入:\n</strong>+----+---------+----------+-----+\n| id | first | last | age |\n+----+---------+----------+-----+\n| 1 | Mason | King | 6 |\n| 2 | Ava | Wright | 7 |\n| 3 | Taylor | Hall | 16 |\n| 4 | Georgia | Thompson | 18 |\n| 5 | Thomas | Moore | 10 |\n+----+---------+----------+-----+\n<b>输出:</b>\n+------------+------------+-----------+--------------+\n| student_id | first_name | last_name | age_in_years |\n+------------+------------+-----------+--------------+\n| 1 | Mason | King | 6 |\n| 2 | Ava | Wright | 7 |\n| 3 | Taylor | Hall | 16 |\n| 4 | Georgia | Thompson | 18 |\n| 5 | Thomas | Moore | 10 |\n+------------+------------+-----------+--------------+\n<b>解释:</b>\n列名已相应更换。</pre>\n",