擅长:python、mysql、java
<p><strong>代码:</strong></p>
<pre><code>list1=[('id1','host1'),('id2','host2'),('id1','host5'),('id3','host4'),('id4','host6'),('id5','host8')]
list1 = map(list,list1)
list2=[('id1','IP1'),('id2','IP2'),('id3','IP3'),('id4','IP4'),('id5','IP5')]
list2 = map(list,list2)
for item in list1:
item += [x[1] for x in list2 if x[0]==item[0]]
list1 += [x for x in list2 if not any(i for i in list1 if x[0]==i[0])]
print list1
</code></pre>
<p><strong>输出:</strong></p>
^{pr2}$
<p>希望这有帮助:)</p>