需要对不确定长度的字典和不确定个数的字典做相加操作，相同的key的value相加，
from collections import OrderedDict,Counter
dict1 = {1:2,3:4}
dict2 = {1:2,3:4,8：90}
dict3 = {1:2,3:4,8:9,10:89}
result = Counter({})
dict_list = [dict1,dict2,dict3]#这里字典随便搞
for dicts in dict_list:
result= result +Counter(dicts)
last_result = dict(result)原文：http://leizhu.blog.51cto.com/3758740/1752140