擅长:python、mysql、java
<p>您可以使用<a href="http://www.regular-expressions.info/wordboundaries.html" rel="nofollow">word boundary (^{<cd1>})</a>,以匹配整个单词搜索:</p>
<pre><code>>>> import re
>>> re.search(r"\b55902\b", "rs1655902 3105 12220")
>>> re.search(r"\b55902\b", "rs6088650 55902 38550")
<_sre.SRE_Match object at 0x7f82594566b0>
</code></pre>
<hr/>
^{pr2}$