从列表中选择 3 个随机项目 [关闭]

Question

我得到了一个单词列表，让我们说大约 200 个不同的单词。我打算创建一个代码，每个代码一起生成 3 个随机单词。

例如：wordlist = ["a", "b", "c", "d", "e", ..., "z"]

输出应该是：

• "a", "d", "z"
• "c", "o", "x"
• "f", "s", "a"
• 等等

Answer 1

import random 

wordlist = ["a","b","c","d","e","f","g"] 
print(random.sample(wordlist, 3))

Answer 2

如果每组 3 个单词中的单词不能在另一组中重复使用，则您需要在制作组之前将整个单词列表打乱。 random 模块中的 shuffle 函数可以进行洗牌，您可以从洗牌的单词列表中依次选择 3 个单词的集合（在下面的示例中使用 zip）

wordlist = ["a","b","c","d","e","f","g","h","i","j","k","l","m",
            "n","o","p","q","r","s","t","u","v","w","x","y","z"]

from random import shuffle

shuffle(wordlist)
trigrams = [t for t in zip(*[iter(wordlist)]*3)]

print(*trigrams,sep="\n")

('w', 'n', 's')
('e', 't', 'b')
('c', 'r', 'z')
('j', 'l', 'g')
('a', 'd', 'm')
('i', 'h', 'y')
('k', 'p', 'f')
('q', 'u', 'v')

请注意，没有使用两个字母（单词），因为只有 26 个字母，而且还需要一个才能获得第 9 组。