random 模块

import random
print(random.random())     #0-1    只能是0的float
print(random.randint(1,5)) #1-4    int
print(random.randrange(1,3)) #1-2
print(random.choice([1,2,3,4,5,6])) #1-6
print(random.sample([1,2,3,4,5,6],2)) #1-6  随机获取2个值
print(random.uniform(1,3))  #1-2   可以是1-2的float