lis中随机项的索引

Question

我有以下清单：

cnames = [" green ", " blue ", " yellow ", " gray ", " pink ", " orange ", "purple ", " red ", "brown "]

如何获得6个表示0和0之间的数字的随机唯一索引 len(cnames)从那个列表中？你知道吗

Answer 1

随机模块应该会有所帮助。你知道吗

import random
random.sample(cnames, 6)   #random.sample returns unique list of random choice. 

random.sample(range(len(cnames)), 6)#to get random int representing a number between 0 and len(cnames)

输出：

[' gray ', ' pink ', 'purple ', ' blue ', ' orange ', ' green ']