如何在Python中的列表中找到最短的字符串 [英] How to find the shortest string in a list in Python

问题描述

这似乎是一个非常简单的问题，但我正在寻找一种简短而甜蜜的方法，它仍然可以理解(这不是代码高尔夫).

This seems like a pretty simple problem, but I'm looking for a short and sweet way of doing it that is still understandable (this isn't code golf).

给定一个字符串列表，找到最短字符串的最简单方法是什么?

Given a list of strings, what's the easiest way to find the shortest string?

对我来说最明显的方式是:

The way that is most obvious to me is roughly:

l = [...some strings...]
lens = map(l, len)
minlen, minind = min(lens)
shortest = l[minind]

但这似乎是解决这个问题的很多代码(至少在 python 中).

but that seems like a lot of code for this problem (at least in python).

推荐答案

min 函数 有一个可选参数key，它允许您指定一个函数来确定每个项目的排序值".我们只需要将其设置为 len 函数得到最短的值:

The min function has an optional parameter key that lets you specify a function to determine the "sorting value" of each item. We just need to set this to the len function to get the shortest value:

strings = ["some", "example", "words", "that", "i", "am", "fond", "of"]

print min(strings, key=len) # prints "i"

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