python sample

sample(序列a，n)

功能：从序列a中随机抽取n个元素，并将n个元素生以list形式返回。

from random import randint, sample
date = [randint(10,20) for _ in range(10)]
c = sample(date, 5)
print(c)
# 输出：[12, 17, 10, 12, 17]

　　randint(10,20) for _ in range(10)：从10~20间随机抽取10个数；