验证码练习

import random

while True:

def makeCode(length=4):

str= “0123456789qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM”

i = 1

code=""

while i <= length:

r= random.randint(0,len(str)-1)

code += str[r]

i+=1

return code

c = input(“请输入验证码的长度：”)

if c == “”:

code = makeCode(4)

else:

cc = int©

code= makeCode(cc)

print(“生成的验证码是：%s” % code)

在这里插入代码片