随机四位数验证码 数字加字母 

# Author:Zhu Jin Xin
import random
checkcode = ""
for i in range(4):
    current = random.randrange(0,4)
    if i==current:
        tmp = chr(random.randint(65,90))
        checkcode+=tmp
    else:
        tmp = str(random.randint(0,9))
        checkcode+=tmp
print(checkcode)
posted @ 2019-01-02 16:57  jjjjjjjjjjjj  阅读(245)  评论(0)  编辑  收藏  举报