我需要在python列表中找到所有唯一值,如果有重复写入其中有多少,例如:
['apple','cherry','coffee','apple','coffee','coffee']
,输出应为:
apple 2
cherry 1
coffee 3
答案 0 :(得分:2)
>>> from collections import Counter
>>> Counter(['apple','cherry','coffee','apple','coffee','coffee'])
Counter({'coffee': 3, 'apple': 2, 'cherry': 1})
>>> for k,v in _.items():
... print k,v
...
cherry 1
coffee 3
apple 2
答案 1 :(得分:1)
看起来像是作业......这是一个直接的方法:
lst = ['apple','cherry','coffee','apple','coffee','coffee']
res = {}
for obj in lst:
if obj not in res:
res[obj] = 0
res[obj] += 1
print res