!/usr/bin/python

import random
print(random.random()) #打印0-1之间的随机浮点数
print(random.uniform(1,10)) #打印1-10之间的随机浮点数
print(random.randint(1,10)) #打印1-10直接的整数
print(random.randrange(10, 30, 2)) #10到30，步数为2
lst = ['python','C','C++','javascript']
print(random.choice(lst)) #随机选择
p = ['A' , 'B', 'C', 'D', 'E' ]
random.shuffle(p) #重新排序
print(p)
lst = [1,2,3,4,5]
print(random.sample(lst,4)) #随机截取长度4
print(lst)