为什么我在 python 中的 len() 代码没有提供正确的字符串长度？

Question

我正在尝试使用 python 编写一个刽子手游戏，但在运行代码时我遇到了获取正确长度的字符串以返回的问题。它将返回诸如['clouds'] 10or之类的东西，['mango'] 9或者['rose'] 8当它实际上应该返回['clouds'] 6and['mango'] 5和时['rose'] 4。请帮我看看我做错了什么！这是我写的：import randomword_list = ['tiger','dog','cake','disney','donut','rose','clouds','movies','sparkle','yoga','walrus','candle','mango','taco','flowers']word = str(random.sample(word_list, 1))word_len = len(word)print(word, word_len)

Answer 1

random.sample(word_list, 1)返回list像 ["sparkle"] 这样的单个项目，并且您将其转换为str，因此它[""]在单词周围添加，因此单词变为'["sparkle"]'

我认为你需要：

import random

word_list = ['tiger','dog','cake','disney','donut','rose','clouds','movies','sparkle','yoga','walrus','candle','mango','taco','flowers']

word = random.sample(word_list, 1)

word_len = len(word[0])

print(word, word_len)

输出：

['sparkle'] 7

Answer 2

你使用了错误的方法

import random

word_list = ['tiger','dog','cake','disney','donut','rose','clouds','movies','sparkle','yoga','walrus','candle','mango','taco','flowers']

# return a k length list of unique elements chosen from the population sequence or set

# where k is 1, population sequence is word_list

print(random.sample(word_list, 1))

# to get random item from list you have to use random.choice

print(random.choice(word_list))