【Python基础】为什么random.shuffle(x)不能赋值给变量进行print?

Question

import random

x = [i for i in range(10)]
value=random.shuffle(x)
print(value)

Answer 1

random.shuffle(x)  返回None,

要打印,直接打印"a"列表,打乱后元素仍放在"a"里.