在Python3.x中使用random打印不同的值

random.shuffle :

from random import shuffle

colors = {1: "Red", 2: "Green", 3: "Blue", 4: "White"}

balls = list(colors)
shuffle(balls)
result = [ball/10 for ball in balls]

print(result)

另一个选项(尤其适用于较大的列表,因为无序排列列表“很慢”)是使用 random.sample :

from random import sample

colors = {1: "Red", 2: "Green", 3: "Blue", 4: "White"}

result = [ball/10 for ball in sample(colors, 4)]

print(result)

list_taken = []
number = randint(1,n)
while number in list_taken:
    number = randint(1,n)
list_taken.append(number)

因此,上述4行代码所做的是,维护一个已获取值的列表,并重复查找新值,直到得到一个新值。