擅长:python、mysql、java
<p>您可以使用<a href="https://docs.python.org/2/library/re.html#re.sub" rel="nofollow">^{<cd1>}</a>:</p>
<pre><code>import re
print re.sub('aha|oho|ehe', 'h', 'haha') # hh
print re.sub('aha|oho|ehe', 'h', 'hoho') # hh
print re.sub('aha|oho|ehe', 'h', 'hehe') # hh
print re.sub('aha|oho|ehe', 'h', 'hehehahoho') # hhhahh
</code></pre>