如何在while循环中生成非重复随机数?(Python 3)

Question

目前我看到的是

import random
def go():
    rounds = 0
    while rounds < 5:
        number = random.randint(1, 5)
        if number == 1:
            print('a')
        elif number == 2:
            print('b')
        elif number == 3:
            print('c')
        elif number == 4:
            print('d')
        elif number == 5:
            print('e')
        rounds = rounds + 1
go()

，输出结果是类似于

的内容

e
e
c
b
e

如何使一个数字只使用一次，而字母不重复?

a
e
b
c
d

Thanks in advance

Answer 1

随机。Sample (population, k)方法返回长度为k的指定总体中唯一值的样本。

r = random.sample("abcde", 5)
for element in r:
    print(element)