擅长:python、mysql、java
<p>我不知道你发布的代码与你的要求有什么关系,但要回答你的问题:</p>
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<p>How do I check if a letter is in a word? I want to check if A is in ABC? How do I do that?</p>
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<p>很简单:</p>
<pre><code>>>> 'A' in 'ABC'
True
</code></pre>