擅长:python、mysql、java
<ul>
<li>使用<code>any</code>签入字符串中每个字符的集合</li>
</ul>
<pre class="lang-py prettyprint-override"><code>SET = set("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._")
s = "123#"
print(any(x not in SET for x in s))
</code></pre>