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>} module</a></p>
<pre><code>>>> text = 'textextextextext<tag>10005991</tag>textextextextext'
>>> re.sub(r'<tag>1(\d+)</tag>','<tag>YYYYY</tag>',text)
'textextextextext<tag>YYYYY</tag>textextextextext'
</code></pre>
<p><code>re.sub</code>将用第二个参数替换匹配的文本。在</p>
<p>引用文件</p>
<blockquote>
<p>Return the string obtained by replacing the leftmost non-overlapping occurrences of pattern in string by the replacement repl. If the pattern isn’t found, string is returned unchanged.</p>
</blockquote>
<p>用法可能是:</p>
^{pr2}$