擅长:python、mysql、java
<p>这段代码只提取一个真正的范围<code>x-y</code>和{<cd2>}</p>
<pre><code>sentence = 'test 69 example 55-66 example 77-44 example 999-3001 example'
for word in re.findall('\d+-\d+', sentence):
l = word.split('-')
if int(l[0])< int(l[1]) <= 3000:
word
</code></pre>
<p>此示例的输出:</p>
^{pr2}$