擅长:python、mysql、java
<p>{cd1>中最简单的字符集}是检查字符集^的最简单方式。例如:</p>
<pre><code>alpha_set = set("best")
print set("test").issubset(alpha_set)
print set("testa").issubset(alpha_set)
</code></pre>
<p>印刷品:</p>
^{pr2}$
<p><a href="https://ideone.com/kEz0IV" rel="nofollow">Example here</a></p>