只有第一个参数用items()才能赋给一个新字典
#对key排序
dict = sorted(dict.items(), key = lambda x:x[0], reverse = False) #reverse = False为升序
#对value排序
dict = sorted(dict.items(), key = lambda x:x[1])
l = [11,11,12,12,432,32,43,33,33,43,12,22,432,21,33,43]
from collections import Counter
r = Counter(l)
print (r)
#Counter({11: 2, 12: 3, 432: 2, 32: 1, 43: 3, 33: 3, 22: 1, 21: 1})
#之后直接dict(r)可转为正常字典
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