[ Python

import random
checkcode = ''
for i in range(4):
    if i == random.randint(0,3):
        current = chr(random.randrange(65,90))
        checkcode += str(current)
    else:
        checkcode += str(i)

print(checkcode)
View Code
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原文地址：https://www.cnblogs.com/hukey/p/7076060.html