python之random模块

import random

res=random.random()

print(res)

print(random.randint(1,4))

print(random.randrange(1,4))

print(random.choice([11,'22',33]))

print(random.sample([2,3,5,8],3))         //输出结果为[8, 5, 3]

print(random.uniform(1,4))                    //输出结果为2.4596659503195655
ret=[1,2,3]

random.shuffle(ret)

print(ret)                                               //输出结果为[1, 3, 2]

def r_code():

       code=''

       for i in range(4):

            num=random.randint(0,9)

            ch=chr(random.randint(65,122))

            s=str(random.choice([num,ch]))

            code+=s

      return code

print(r_code())

来源：https://www.cnblogs.com/cxydnxs/p/12297385.html