Question

我有一个列表，我随机打印其中一个项目，但我想从列表中打印另一个随机项目，我想100％确定它不是前一个。

import random
i = 0
Names = ["Andrew", 'John', 'Jacob','Bob']

for l in Names:
    i += 1


c = random.randrange(0,i)
print(Names[c])

Answer 1

使用random.sample从给定序列中选择唯一元素，例如

import random

Names = ['Andrew', 'John', 'Jacob', 'Bob']

choice = random.sample(Names, 2) # choose 2 unique names from Names

print(choice[0])
print(choice[1])

Answer 2

random.shuffle(names)
names[0] # first pick
names[1] # second pick ... also guaranteed not to be first pick

另一种方法是在随机选择名称时从列表中删除名称

names =[...]
random1 = names.pop(random.randint(0,len(names)))
random2 = names.pop(random.randint(0,len(names)))

Python没有先前的选择从列表中随机选择

2 个答案: