如何在python中生成列表中列出最多的项

我想打印列表中列出最多的项目

比如说,

aList = ["SE","CpE","SE","CS","CS","SE"]

结果应该是

aList = ["SE"]

哪一项是列出最多的。 请帮忙

from collections import Counter

a = Counter(aList)
a.most_common()[0]

---

这样的问题很多，但无论如何

您可以使用stdlib的

集合执行此操作。计数器

：

from collections import Counter

a = Counter(aList)
a.most_common()[0]

或者您可以编写自己的类/函数：

def count(list):
    items = {}
    for item in list:
        if item not in items:
            items[item] = 0
        items[item] += 1
    return items

>>> count(["SE","CpE","SE","CS","CS","SE"])
{"SE": 3,...}