擅长:python、mysql、java
<p>下面是一个regex解决方案:</p>
<pre><code>def cap(m):
return m.group(0).title()
re.sub(r'(?:^\s*\w+)|(?:[^\s]+\s*$)',cap," this is a demonstration sentence. ")
' This is a demonstration Sentence. '
</code></pre>
<p>对不起,我只能这么做了。。。在</p>
<p>正则表达式分解:</p>
^{2}$