python如何计算列表内各元素的个数？
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2022-04-24 21:39:06
python如何计算列表内各元素的个数？
list = [1,2,3,4,5,6,7,5,4,3,2,12]
set = set(list)
dict = {}...
python如何计算列表内各元素的个数？
list = [1,2,3,4,5,6,7,5,4,3,2,12]
set = set(list)
dict = {}
for item in set:
dict.update({item:list.count(item)})