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leetcode-cn/problem (Chinese)/显示前三行 [display-the-first-three-rows].html Normal file
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<pre>
DataFrame: <code>employees</code>
+-------------+--------+
| Column Name | Type |
+-------------+--------+
| employee_id | int |
| name | object |
| department | object |
| salary | int |
+-------------+--------+
</pre>
<p>编写一个解决方案，显示这个 DataFrame 的<strong> 前&nbsp;&nbsp;<code>3</code>&nbsp;</strong>行。</p>
<p>&nbsp;</p>
<p><b>示例 1:</b></p>
<pre>
<strong>输入：
</strong>DataFrame employees
+-------------+-----------+-----------------------+--------+
| employee_id | name | department | salary |
+-------------+-----------+-----------------------+--------+
| 3 | Bob | Operations | 48675 |
| 90 | Alice | Sales | 11096 |
| 9 | Tatiana | Engineering | 33805 |
| 60 | Annabelle | InformationTechnology | 37678 |
| 49 | Jonathan | HumanResources | 23793 |
| 43 | Khaled | Administration | 40454 |
+-------------+-----------+-----------------------+--------+
<b>输出：</b>
+-------------+---------+-------------+--------+
| employee_id | name | department | salary |
+-------------+---------+-------------+--------+
| 3 | Bob | Operations | 48675 |
| 90 | Alice | Sales | 11096 |
| 9 | Tatiana | Engineering | 33805 |
+-------------+---------+-------------+--------+
<b>解释：</b>
只有前 3 行被显示。</pre>