擅长:python、mysql、java
<pre><code>>>> import re
>>> source_str = 'You ARe probably familiaR with wildcard'
>>> re.sub(r"(ar)", r"[b]\1[/b]", source_str, flags=re.IGNORECASE)
'You [b]AR[/b]e probably famili[b]aR[/b] with wildc[b]ar[/b]d'
</code></pre>