擅长:python、mysql、java
<p>使用模块<strong>re</strong></p>
<pre><code>import re
s = 'FGHAGATCATCFJSFAGATCAGATCFHGH'
match = re.finditer('(?P<name>AGATC)+', s)
max_len = 0
result = tuple()
for m in match:
l = m.end() - m.start()
if l > max_len:
max_len = l
result = (m.start(), m.end())
print(result)
</code></pre>