用编程实现:凯撒密码解密

Question

Answer 1

data  = input("请输入密文:")
newData = ""
for s in data:
    if  ord("A") <= ord(s) <= ord("Z"):
        res = chr((ord(s)- ord("A") - 3) % 26 + ord("A"))
        newData += res
    else:
        res = chr((ord(s) - ord("a") - 3) % 26 + ord("a"))
        newData += res
print("{}的原文是{}".format(data,newData))
        

运行结果:

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