随机数random

import random

print(random.random())  #不接收任何参数
print(random.randint(5,9))  #接收参数范围包含边界值
# random.randrange（10）
print(random.randrange(10,15)) #可接受一个和两个
print(random.choice("abcd"))   #可以接受一个参数，字符串也可以放列表字典等
print(random.choice(["abc",[1,2,3]]))
# print(random.choices(["fefewf"]))
print(random.sample(["123",4,[123],2],2)) #可以从里面随机选几个，最后一个数字是选择的个数

print(random.choice(["a","b","d","e",1,2,3,4,5]))

#下面两种方式实现5位数的随机数

def ff():
    verification_code = ""
    for i in range(6):
        randomdigst = str(random.choice([chr(random.randrange(65,91)),random.randrange(1,9)]))
        verification_code += randomdigst
    print(verification_code)
ff()

def ff():
    verification_code = ""
    for i in range(6):
        if i == random.randrange(0,3):
            randomdigst = str(random.randrange(1,9))
        else:
            randomdigst = chr(random.randrange(65,91)).lower()
        verification_code += randomdigst
    print(verification_code)
ff()