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91 lines
3.0 KiB
HTML
91 lines
3.0 KiB
HTML
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<p>表：<code>user_content</code></p>
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<pre>
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+-------------+---------+
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| Column Name | Type |
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+-------------+---------+
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| content_id | int |
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| content_text| varchar |
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+-------------+---------+
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content_id 是这张表的唯一主键。
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每一行包含一个不同的 ID 以及对应的文本内容。
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</pre>
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<p>编写一个解决方案来根据下面的规则来转换 <code>content_text</code> 列中的文本：</p>
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<ul>
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<li>将每个单词的 <strong>第一个字母</strong> 转换为 <strong>大写</strong>，其余字母 <strong>保持小写</strong>。</li>
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<li>特殊处理包含特殊字符的单词：
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<ul>
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<li>对于用短横 <code>-</code> 连接的词语，<strong>两个部份</strong> 都应该 <strong>大写</strong>（<strong>例如</strong>，top-rated → Top-Rated）</li>
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</ul>
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</li>
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<li>所有其他 <strong>格式</strong> 和 <strong>空格</strong> 应保持 <strong>不变</strong></li>
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</ul>
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<p>返回结果表同时包含原始的 <code>content_text</code> 以及根据上述规则修改后的文本。</p>
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<p>结果格式如下例所示。</p>
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<p> </p>
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<p><strong class="example">示例：</strong></p>
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<div class="example-block">
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<p><strong>输入：</strong></p>
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<p>user_content 表：</p>
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<pre class="example-io">
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+------------+---------------------------------+
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| content_id | content_text |
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+------------+---------------------------------+
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| 1 | hello world of SQL |
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| 2 | the QUICK-brown fox |
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| 3 | modern-day DATA science |
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| 4 | web-based FRONT-end development |
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+------------+---------------------------------+
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</pre>
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<p><strong>输出：</strong></p>
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<pre class="example-io">
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+------------+---------------------------------+---------------------------------+
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| content_id | original_text | converted_text |
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+------------+---------------------------------+---------------------------------+
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| 1 | hello world of SQL | Hello World Of Sql |
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| 2 | the QUICK-brown fox | The Quick-Brown Fox |
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| 3 | modern-day DATA science | Modern-Day Data Science |
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| 4 | web-based FRONT-end development | Web-Based Front-End Development |
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+------------+---------------------------------+---------------------------------+
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</pre>
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<p><strong>解释：</strong></p>
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<ul>
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<li>对于 content_id = 1：
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<ul>
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<li>每个单词的首字母都是大写的："Hello World Of Sql"</li>
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</ul>
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</li>
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<li>对于 content_id = 2：
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<ul>
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<li>包含的连字符词 "QUICK-brown" 变为 "Quick-Brown"</li>
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<li>其它单词遵循普通的首字母大写规则</li>
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</ul>
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</li>
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<li>对于 content_id = 3：
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<ul>
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<li>连字符词 "modern-day" 变为 "Modern-Day"</li>
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<li>"DATA" 转换为 "Data"</li>
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</ul>
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</li>
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<li>对于 content_id = 4：
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<ul>
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<li>包含两个连字符词："web-based" → "Web-Based"</li>
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<li>以及 "FRONT-end" → "Front-End"</li>
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</ul>
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</li>
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</ul>
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</div>
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