python - 如何使用python查找列表中最大数字出现的次数？

Question

例如 如果列表是:list = [1, 2, 3, 4, 4] 如何计算数字 4 出现的次数，而不指定它。使用max(list)或类似的东西。

Answer 1

使用max尝试一下:

l = [1,2,3,4,4]
num = max(l, key=lambda x:l.count(x))  # num will be 4

可以得到num的计数。

l.count(num)  # this wil returns 2

另一方面，正如@buddemat所说(Here)，最好:

from collections import Counter      
                                                                                                                                                                                                                                         
l = [1,2,3,4,4]
c = Counter(l)  
c.most_common()[0]

会给你

(4,2) # 4 is a maximum number and 2 is number of occurrence.

另请注意:

DO NOT use list as a variable name, list is predefined in python and you will override its own functionality.