擅长:python、mysql、java
<p>这对你有用吗:</p>
<pre><code>group = dict()
for elm in tablenames:
try:
f,s = elm.split('.')
except:
pass
else:
group.setdefault(s,[])
group[s].append(elm)
import pprint
pprint.pprint(group.values())
</code></pre>
<p>输出:</p>
^{pr2}$