arr = [1, 23,3 ,434,54,545,65,54,54,45,23,54,23]
arr_1 = set(arr)
from collections import Counter
def counter(arr):
return Counter(arr).most_common(len(arr_1)) if Counter(arr).most_common(len(arr_1)) else None
print(counter(arr))
arr = [1, 23,3 ,434,54,545,65,54,54,45,23,54,23]
arr_1 = set(arr)
from collections import Counter
def counter(arr):
return Counter(arr).most_common(len(arr_1)) if Counter(arr).most_common(len(arr_1)) else None
print(counter(arr))
本文标题：获取每个元素在列表出现的次数
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