擅长:python、mysql、java
<pre><code>dict12 = defaultdict(lambda:defaultdict(list))
for k,v in dict1.items():
for k1,v1 in v.items():
dict12[k][k1] = v1
for k,v in dict2.items():
for k2,v2 in v.items():
dict12[k][k2] += v2
for k,v in dict12.items():
for k12,v12 in v.items():
print "dict12[%r][%r] = %r" % (k,k12,v12)
</code></pre>